20812831718

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{911}}^1\times {\mathrm{12457}}^1$

素因数の和:13508

約数の個数: 32

約数和(自身を含む): 35993852928

約数和(自身を除く): 15181021210

約数列:

[1, 2, 7, 14, 131, 262, 911, 917, 1822, 1834, 6377, 12457, 12754, 24914, 87199, 119341, 174398, 238682, 835387, 1631867, 1670774, 3263734, 11348327, 11423069, 22696654, 22846138, 79438289, 158876578, 1486630837, 2973261674, 10406415859, 20812831718]

約数ペア:

[(1, 20812831718), (2, 10406415859), (7, 2973261674), (14, 1486630837), (131, 158876578), (262, 79438289), (911, 22846138), (917, 22696654), (1822, 11423069), (1834, 11348327), (6377, 3263734), (12457, 1670774), (12754, 1631867), (24914, 835387), (87199, 238682), (119341, 174398)]