21291255895

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{125453}}^1$

素因数の和:125851

約数の個数: 32

約数和(自身を含む): 31530102912

約数和(自身を除く): 10238847017

約数列:

[1, 5, 7, 13, 35, 65, 91, 373, 455, 1865, 2611, 4849, 13055, 24245, 33943, 125453, 169715, 627265, 878171, 1630889, 4390855, 8154445, 11416223, 46793969, 57081115, 233969845, 327557783, 608321597, 1637788915, 3041607985, 4258251179, 21291255895]

約数ペア:

[(1, 21291255895), (5, 4258251179), (7, 3041607985), (13, 1637788915), (35, 608321597), (65, 327557783), (91, 233969845), (373, 57081115), (455, 46793969), (1865, 11416223), (2611, 8154445), (4849, 4390855), (13055, 1630889), (24245, 878171), (33943, 627265), (125453, 169715)]