20531547

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 30551040

約数和(自身を除く): 10019493

約数列:

[1, 3, 9, 67, 79, 201, 237, 431, 603, 711, 1293, 3879, 5293, 15879, 28877, 34049, 47637, 86631, 102147, 259893, 306441, 2281283, 6843849, 20531547]

約数ペア:

[(1, 20531547), (3, 6843849), (9, 2281283), (67, 306441), (79, 259893), (201, 102147), (237, 86631), (431, 47637), (603, 34049), (711, 28877), (1293, 15879), (3879, 5293)]