20668430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121579}}^1$

素因数の和:121603

約数の個数: 16

約数和(自身を含む): 39391920

約数和(自身を除く): 18723490

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 121579, 243158, 607895, 1215790, 2066843, 4133686, 10334215, 20668430]

約数ペア:

[(1, 20668430), (2, 10334215), (5, 4133686), (10, 2066843), (17, 1215790), (34, 607895), (85, 243158), (170, 121579)]