21695310

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{883}}^1$

素因数の和:919

約数の個数: 128

約数和(自身を含む): 71285760

約数和(自身を除く): 49590450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 135, 182, 189, 195, 210, 234, 270, 273, 315, 351, 378, 390, 455, 546, 585, 630, 702, 819, 883, 910, 945, 1170, 1365, 1638, 1755, 1766, 1890, 2457, 2649, 2730, 3510, 4095, 4415, 4914, 5298, 6181, 7947, 8190, 8830, 11479, 12285, 12362, 13245, 15894, 18543, 22958, 23841, 24570, 26490, 30905, 34437, 37086, 39735, 47682, 55629, 57395, 61810, 68874, 79470, 80353, 92715, 103311, 111258, 114790, 119205, 160706, 166887, 172185, 185430, 206622, 238410, 241059, 278145, 309933, 333774, 344370, 401765, 482118, 516555, 556290, 619866, 723177, 803530, 834435, 1033110, 1205295, 1446354, 1549665, 1668870, 2169531, 2410590, 3099330, 3615885, 4339062, 7231770, 10847655, 21695310]

約数ペア:

[(1, 21695310), (2, 10847655), (3, 7231770), (5, 4339062), (6, 3615885), (7, 3099330), (9, 2410590), (10, 2169531), (13, 1668870), (14, 1549665), (15, 1446354), (18, 1205295), (21, 1033110), (26, 834435), (27, 803530), (30, 723177), (35, 619866), (39, 556290), (42, 516555), (45, 482118), (54, 401765), (63, 344370), (65, 333774), (70, 309933), (78, 278145), (90, 241059), (91, 238410), (105, 206622), (117, 185430), (126, 172185), (130, 166887), (135, 160706), (182, 119205), (189, 114790), (195, 111258), (210, 103311), (234, 92715), (270, 80353), (273, 79470), (315, 68874), (351, 61810), (378, 57395), (390, 55629), (455, 47682), (546, 39735), (585, 37086), (630, 34437), (702, 30905), (819, 26490), (883, 24570), (910, 23841), (945, 22958), (1170, 18543), (1365, 15894), (1638, 13245), (1755, 12362), (1766, 12285), (1890, 11479), (2457, 8830), (2649, 8190), (2730, 7947), (3510, 6181), (4095, 5298), (4415, 4914)]