21947432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 26436568

約数列:

[1, 2, 4, 8, 13, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 232, 247, 377, 383, 494, 551, 754, 766, 988, 1102, 1508, 1532, 1976, 2204, 3016, 3064, 4408, 4979, 7163, 7277, 9958, 11107, 14326, 14554, 19916, 22214, 28652, 29108, 39832, 44428, 57304, 58216, 88856, 94601, 144391, 189202, 211033, 288782, 378404, 422066, 577564, 756808, 844132, 1155128, 1688264, 2743429, 5486858, 10973716, 21947432]

約数ペア:

[(1, 21947432), (2, 10973716), (4, 5486858), (8, 2743429), (13, 1688264), (19, 1155128), (26, 844132), (29, 756808), (38, 577564), (52, 422066), (58, 378404), (76, 288782), (104, 211033), (116, 189202), (152, 144391), (232, 94601), (247, 88856), (377, 58216), (383, 57304), (494, 44428), (551, 39832), (754, 29108), (766, 28652), (988, 22214), (1102, 19916), (1508, 14554), (1532, 14326), (1976, 11107), (2204, 9958), (3016, 7277), (3064, 7163), (4408, 4979)]