21086364

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 56448000

約数和(自身を除く): 35361636

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 59, 78, 79, 87, 116, 118, 156, 158, 174, 177, 236, 237, 316, 348, 354, 377, 474, 708, 754, 767, 948, 1027, 1131, 1508, 1534, 1711, 2054, 2262, 2291, 2301, 3068, 3081, 3422, 4108, 4524, 4582, 4602, 4661, 5133, 6162, 6844, 6873, 9164, 9204, 9322, 10266, 12324, 13746, 13983, 18644, 20532, 22243, 27492, 27966, 29783, 44486, 55932, 59566, 60593, 66729, 88972, 89349, 119132, 121186, 133458, 135169, 178698, 181779, 242372, 266916, 270338, 357396, 363558, 405507, 540676, 727116, 811014, 1622028, 1757197, 3514394, 5271591, 7028788, 10543182, 21086364]

約数ペア:

[(1, 21086364), (2, 10543182), (3, 7028788), (4, 5271591), (6, 3514394), (12, 1757197), (13, 1622028), (26, 811014), (29, 727116), (39, 540676), (52, 405507), (58, 363558), (59, 357396), (78, 270338), (79, 266916), (87, 242372), (116, 181779), (118, 178698), (156, 135169), (158, 133458), (174, 121186), (177, 119132), (236, 89349), (237, 88972), (316, 66729), (348, 60593), (354, 59566), (377, 55932), (474, 44486), (708, 29783), (754, 27966), (767, 27492), (948, 22243), (1027, 20532), (1131, 18644), (1508, 13983), (1534, 13746), (1711, 12324), (2054, 10266), (2262, 9322), (2291, 9204), (2301, 9164), (3068, 6873), (3081, 6844), (3422, 6162), (4108, 5133), (4524, 4661), (4582, 4602)]