21627736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 24639464

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 71, 101, 104, 116, 142, 202, 232, 284, 377, 404, 568, 754, 808, 923, 1313, 1508, 1846, 2059, 2626, 2929, 3016, 3692, 4118, 5252, 5858, 7171, 7384, 8236, 10504, 11716, 14342, 16472, 23432, 26767, 28684, 38077, 53534, 57368, 76154, 93223, 107068, 152308, 186446, 207959, 214136, 304616, 372892, 415918, 745784, 831836, 1663672, 2703467, 5406934, 10813868, 21627736]

約数ペア:

[(1, 21627736), (2, 10813868), (4, 5406934), (8, 2703467), (13, 1663672), (26, 831836), (29, 745784), (52, 415918), (58, 372892), (71, 304616), (101, 214136), (104, 207959), (116, 186446), (142, 152308), (202, 107068), (232, 93223), (284, 76154), (377, 57368), (404, 53534), (568, 38077), (754, 28684), (808, 26767), (923, 23432), (1313, 16472), (1508, 14342), (1846, 11716), (2059, 10504), (2626, 8236), (2929, 7384), (3016, 7171), (3692, 5858), (4118, 5252)]