21176475404

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{38747}}^1$

素因数の和:39038

約数の個数: 48

約数和(自身を含む): 42963782400

約数和(自身を除く): 21787306996

約数列:

[1, 2, 4, 7, 14, 28, 131, 149, 262, 298, 524, 596, 917, 1043, 1834, 2086, 3668, 4172, 19519, 38747, 39038, 77494, 78076, 136633, 154988, 271229, 273266, 542458, 546532, 1084916, 5075857, 5773303, 10151714, 11546606, 20303428, 23093212, 35530999, 40413121, 71061998, 80826242, 142123996, 161652484, 756302693, 1512605386, 3025210772, 5294118851, 10588237702, 21176475404]

約数ペア:

[(1, 21176475404), (2, 10588237702), (4, 5294118851), (7, 3025210772), (14, 1512605386), (28, 756302693), (131, 161652484), (149, 142123996), (262, 80826242), (298, 71061998), (524, 40413121), (596, 35530999), (917, 23093212), (1043, 20303428), (1834, 11546606), (2086, 10151714), (3668, 5773303), (4172, 5075857), (19519, 1084916), (38747, 546532), (39038, 542458), (77494, 273266), (78076, 271229), (136633, 154988)]