131831756

素因数分解:

$2^2\times 7^2\times {\mathrm{521}}^1\times {\mathrm{1291}}^1$

素因数の和:1830

約数の個数: 36

約数和(自身を含む): 269095176

約数和(自身を除く): 137263420

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 521, 1042, 1291, 2084, 2582, 3647, 5164, 7294, 9037, 14588, 18074, 25529, 36148, 51058, 63259, 102116, 126518, 253036, 672611, 1345222, 2690444, 4708277, 9416554, 18833108, 32957939, 65915878, 131831756]

約数ペア:

[(1, 131831756), (2, 65915878), (4, 32957939), (7, 18833108), (14, 9416554), (28, 4708277), (49, 2690444), (98, 1345222), (196, 672611), (521, 253036), (1042, 126518), (1291, 102116), (2084, 63259), (2582, 51058), (3647, 36148), (5164, 25529), (7294, 18074), (9037, 14588)]