21937825

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9643}}^1$

素因数の和:9673

約数の個数: 24

約数和(自身を含む): 33483968

約数和(自身を除く): 11546143

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 9643, 48215, 67501, 125359, 241075, 337505, 626795, 877513, 1687525, 3133975, 4387565, 21937825]

約数ペア:

[(1, 21937825), (5, 4387565), (7, 3133975), (13, 1687525), (25, 877513), (35, 626795), (65, 337505), (91, 241075), (175, 125359), (325, 67501), (455, 48215), (2275, 9643)]