20163975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20681}}^1$

素因数の和:20707

約数の個数: 24

約数和(自身を含む): 35903952

約数和(自身を除く): 15739977

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20681, 62043, 103405, 268853, 310215, 517025, 806559, 1344265, 1551075, 4032795, 6721325, 20163975]

約数ペア:

[(1, 20163975), (3, 6721325), (5, 4032795), (13, 1551075), (15, 1344265), (25, 806559), (39, 517025), (65, 310215), (75, 268853), (195, 103405), (325, 62043), (975, 20681)]