2187965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 2900016

約数和(自身を除く): 712051

約数列:

[1, 5, 13, 41, 65, 205, 533, 821, 2665, 4105, 10673, 33661, 53365, 168305, 437593, 2187965]

約数ペア:

[(1, 2187965), (5, 437593), (13, 168305), (41, 53365), (65, 33661), (205, 10673), (533, 4105), (821, 2665)]