20007975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20521}}^1$

素因数の和:20547

約数の個数: 24

約数和(自身を含む): 35626192

約数和(自身を除く): 15618217

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20521, 61563, 102605, 266773, 307815, 513025, 800319, 1333865, 1539075, 4001595, 6669325, 20007975]

約数ペア:

[(1, 20007975), (3, 6669325), (5, 4001595), (13, 1539075), (15, 1333865), (25, 800319), (39, 513025), (65, 307815), (75, 266773), (195, 102605), (325, 61563), (975, 20521)]