21049392

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 68884480

約数和(自身を除く): 47835088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 61, 78, 79, 84, 91, 104, 112, 122, 156, 158, 168, 182, 183, 208, 237, 244, 273, 312, 316, 336, 364, 366, 427, 474, 488, 546, 553, 624, 632, 728, 732, 793, 854, 948, 976, 1027, 1092, 1106, 1264, 1281, 1456, 1464, 1586, 1659, 1708, 1896, 2054, 2184, 2212, 2379, 2562, 2928, 3081, 3172, 3318, 3416, 3792, 4108, 4368, 4424, 4758, 4819, 5124, 5551, 6162, 6344, 6636, 6832, 7189, 8216, 8848, 9516, 9638, 10248, 11102, 12324, 12688, 13272, 14378, 14457, 16432, 16653, 19032, 19276, 20496, 21567, 22204, 24648, 26544, 28756, 28914, 33306, 33733, 38064, 38552, 43134, 44408, 49296, 57512, 57828, 62647, 66612, 67466, 77104, 86268, 88816, 101199, 115024, 115656, 125294, 133224, 134932, 172536, 187941, 202398, 231312, 250588, 266448, 269864, 345072, 375882, 404796, 438529, 501176, 539728, 751764, 809592, 877058, 1002352, 1315587, 1503528, 1619184, 1754116, 2631174, 3007056, 3508232, 5262348, 7016464, 10524696, 21049392]

約数ペア:

[(1, 21049392), (2, 10524696), (3, 7016464), (4, 5262348), (6, 3508232), (7, 3007056), (8, 2631174), (12, 1754116), (13, 1619184), (14, 1503528), (16, 1315587), (21, 1002352), (24, 877058), (26, 809592), (28, 751764), (39, 539728), (42, 501176), (48, 438529), (52, 404796), (56, 375882), (61, 345072), (78, 269864), (79, 266448), (84, 250588), (91, 231312), (104, 202398), (112, 187941), (122, 172536), (156, 134932), (158, 133224), (168, 125294), (182, 115656), (183, 115024), (208, 101199), (237, 88816), (244, 86268), (273, 77104), (312, 67466), (316, 66612), (336, 62647), (364, 57828), (366, 57512), (427, 49296), (474, 44408), (488, 43134), (546, 38552), (553, 38064), (624, 33733), (632, 33306), (728, 28914), (732, 28756), (793, 26544), (854, 24648), (948, 22204), (976, 21567), (1027, 20496), (1092, 19276), (1106, 19032), (1264, 16653), (1281, 16432), (1456, 14457), (1464, 14378), (1586, 13272), (1659, 12688), (1708, 12324), (1896, 11102), (2054, 10248), (2184, 9638), (2212, 9516), (2379, 8848), (2562, 8216), (2928, 7189), (3081, 6832), (3172, 6636), (3318, 6344), (3416, 6162), (3792, 5551), (4108, 5124), (4368, 4819), (4424, 4758)]