64781661

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 102629376

約数和(自身を除く): 37847715

約数列:

[1, 3, 7, 21, 31, 93, 191, 217, 521, 573, 651, 1337, 1563, 3647, 4011, 5921, 10941, 16151, 17763, 41447, 48453, 99511, 113057, 124341, 298533, 339171, 696577, 2089731, 3084841, 9254523, 21593887, 64781661]

約数ペア:

[(1, 64781661), (3, 21593887), (7, 9254523), (21, 3084841), (31, 2089731), (93, 696577), (191, 339171), (217, 298533), (521, 124341), (573, 113057), (651, 99511), (1337, 48453), (1563, 41447), (3647, 17763), (4011, 16151), (5921, 10941)]