21943025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:761

約数の個数: 24

約数和(自身を含む): 29623104

約数和(自身を除く): 7680079

約数列:

[1, 5, 13, 25, 65, 107, 325, 535, 631, 1391, 2675, 3155, 6955, 8203, 15775, 34775, 41015, 67517, 205075, 337585, 877721, 1687925, 4388605, 21943025]

約数ペア:

[(1, 21943025), (5, 4388605), (13, 1687925), (25, 877721), (65, 337585), (107, 205075), (325, 67517), (535, 41015), (631, 34775), (1391, 15775), (2675, 8203), (3155, 6955)]