31811811

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 47096640

約数和(自身を除く): 15284829

約数列:

[1, 3, 17, 29, 51, 87, 137, 157, 411, 471, 493, 1479, 2329, 2669, 3973, 4553, 6987, 8007, 11919, 13659, 21509, 64527, 67541, 77401, 202623, 232203, 365653, 623761, 1096959, 1871283, 10603937, 31811811]

約数ペア:

[(1, 31811811), (3, 10603937), (17, 1871283), (29, 1096959), (51, 623761), (87, 365653), (137, 232203), (157, 202623), (411, 77401), (471, 67541), (493, 64527), (1479, 21509), (2329, 13659), (2669, 11919), (3973, 8007), (4553, 6987)]