20477925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7001}}^1$

素因数の和:7030

約数の個数: 36

約数和(自身を含む): 39505284

約数和(自身を除く): 19027359

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7001, 21003, 35005, 63009, 91013, 105015, 175025, 273039, 315045, 455065, 525075, 819117, 1365195, 1575225, 2275325, 4095585, 6825975, 20477925]

約数ペア:

[(1, 20477925), (3, 6825975), (5, 4095585), (9, 2275325), (13, 1575225), (15, 1365195), (25, 819117), (39, 525075), (45, 455065), (65, 315045), (75, 273039), (117, 175025), (195, 105015), (225, 91013), (325, 63009), (585, 35005), (975, 21003), (2925, 7001)]