2157408001

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{72229}}^1$

素因数の和:72504

約数の個数: 16

約数和(自身を含む): 2621082240

約数和(自身を除く): 463674239

約数列:

[1, 7, 17, 119, 251, 1757, 4267, 29869, 72229, 505603, 1227893, 8595251, 18129479, 126906353, 308201143, 2157408001]

約数ペア:

[(1, 2157408001), (7, 308201143), (17, 126906353), (119, 18129479), (251, 8595251), (1757, 1227893), (4267, 505603), (29869, 72229)]