21881160

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:500

約数の個数: 192

約数和(自身を含む): 85737600

約数和(自身を除く): 63856440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 114, 120, 126, 133, 140, 152, 168, 171, 180, 190, 210, 228, 252, 266, 280, 285, 315, 342, 360, 380, 399, 420, 456, 457, 504, 532, 570, 630, 665, 684, 760, 798, 840, 855, 914, 1064, 1140, 1197, 1260, 1330, 1368, 1371, 1596, 1710, 1828, 1995, 2280, 2285, 2394, 2520, 2660, 2742, 3192, 3199, 3420, 3656, 3990, 4113, 4570, 4788, 5320, 5484, 5985, 6398, 6840, 6855, 7980, 8226, 8683, 9140, 9576, 9597, 10968, 11970, 12796, 13710, 15960, 15995, 16452, 17366, 18280, 19194, 20565, 23940, 25592, 26049, 27420, 28791, 31990, 32904, 34732, 38388, 41130, 43415, 47880, 47985, 52098, 54840, 57582, 60781, 63980, 69464, 76776, 78147, 82260, 86830, 95970, 104196, 115164, 121562, 127960, 130245, 143955, 156294, 164520, 173660, 182343, 191940, 208392, 230328, 243124, 260490, 287910, 303905, 312588, 347320, 364686, 383880, 390735, 486248, 520980, 547029, 575820, 607810, 625176, 729372, 781470, 911715, 1041960, 1094058, 1151640, 1215620, 1458744, 1562940, 1823430, 2188116, 2431240, 2735145, 3125880, 3646860, 4376232, 5470290, 7293720, 10940580, 21881160]

約数ペア:

[(1, 21881160), (2, 10940580), (3, 7293720), (4, 5470290), (5, 4376232), (6, 3646860), (7, 3125880), (8, 2735145), (9, 2431240), (10, 2188116), (12, 1823430), (14, 1562940), (15, 1458744), (18, 1215620), (19, 1151640), (20, 1094058), (21, 1041960), (24, 911715), (28, 781470), (30, 729372), (35, 625176), (36, 607810), (38, 575820), (40, 547029), (42, 520980), (45, 486248), (56, 390735), (57, 383880), (60, 364686), (63, 347320), (70, 312588), (72, 303905), (76, 287910), (84, 260490), (90, 243124), (95, 230328), (105, 208392), (114, 191940), (120, 182343), (126, 173660), (133, 164520), (140, 156294), (152, 143955), (168, 130245), (171, 127960), (180, 121562), (190, 115164), (210, 104196), (228, 95970), (252, 86830), (266, 82260), (280, 78147), (285, 76776), (315, 69464), (342, 63980), (360, 60781), (380, 57582), (399, 54840), (420, 52098), (456, 47985), (457, 47880), (504, 43415), (532, 41130), (570, 38388), (630, 34732), (665, 32904), (684, 31990), (760, 28791), (798, 27420), (840, 26049), (855, 25592), (914, 23940), (1064, 20565), (1140, 19194), (1197, 18280), (1260, 17366), (1330, 16452), (1368, 15995), (1371, 15960), (1596, 13710), (1710, 12796), (1828, 11970), (1995, 10968), (2280, 9597), (2285, 9576), (2394, 9140), (2520, 8683), (2660, 8226), (2742, 7980), (3192, 6855), (3199, 6840), (3420, 6398), (3656, 5985), (3990, 5484), (4113, 5320), (4570, 4788)]