20916675

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7151}}^1$

素因数の和:7180

約数の個数: 36

約数和(自身を含む): 40351584

約数和(自身を除く): 19434909

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7151, 21453, 35755, 64359, 92963, 107265, 178775, 278889, 321795, 464815, 536325, 836667, 1394445, 1608975, 2324075, 4183335, 6972225, 20916675]

約数ペア:

[(1, 20916675), (3, 6972225), (5, 4183335), (9, 2324075), (13, 1608975), (15, 1394445), (25, 836667), (39, 536325), (45, 464815), (65, 321795), (75, 278889), (117, 178775), (195, 107265), (225, 92963), (325, 64359), (585, 35755), (975, 21453), (2925, 7151)]