21000638912

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{3457}}^1\times {\mathrm{8629}}^1$

素因数の和:12109

約数の個数: 56

約数和(自身を含む): 45480030960

約数和(自身を除く): 24479392048

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704, 3457, 6914, 8629, 13828, 17258, 27656, 34516, 38027, 55312, 69032, 76054, 94919, 110624, 138064, 152108, 189838, 221248, 276128, 304216, 379676, 552256, 608432, 759352, 1216864, 1518704, 2433728, 3037408, 6074816, 29830453, 59660906, 119321812, 238643624, 328134983, 477287248, 656269966, 954574496, 1312539932, 1909148992, 2625079864, 5250159728, 10500319456, 21000638912]

約数ペア:

[(1, 21000638912), (2, 10500319456), (4, 5250159728), (8, 2625079864), (11, 1909148992), (16, 1312539932), (22, 954574496), (32, 656269966), (44, 477287248), (64, 328134983), (88, 238643624), (176, 119321812), (352, 59660906), (704, 29830453), (3457, 6074816), (6914, 3037408), (8629, 2433728), (13828, 1518704), (17258, 1216864), (27656, 759352), (34516, 608432), (38027, 552256), (55312, 379676), (69032, 304216), (76054, 276128), (94919, 221248), (110624, 189838), (138064, 152108)]