20153193969

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{691}}^1\times {\mathrm{809}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 27523774080

約数和(自身を除く): 7370580111

約数列:

[1, 3, 61, 183, 197, 591, 691, 809, 2073, 2427, 12017, 36051, 42151, 49349, 126453, 136127, 148047, 159373, 408381, 478119, 559019, 1677057, 8303747, 9721753, 24911241, 29165259, 34100159, 102300477, 110126743, 330380229, 6717731323, 20153193969]

約数ペア:

[(1, 20153193969), (3, 6717731323), (61, 330380229), (183, 110126743), (197, 102300477), (591, 34100159), (691, 29165259), (809, 24911241), (2073, 9721753), (2427, 8303747), (12017, 1677057), (36051, 559019), (42151, 478119), (49349, 408381), (126453, 159373), (136127, 148047)]