19711390

素因数分解:

$2^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8179}}^1$

素因数の和:8427

約数の個数: 16

約数和(自身を含む): 35632080

約数和(自身を除く): 15920690

約数列:

[1, 2, 5, 10, 241, 482, 1205, 2410, 8179, 16358, 40895, 81790, 1971139, 3942278, 9855695, 19711390]

約数ペア:

[(1, 19711390), (2, 9855695), (5, 3942278), (10, 1971139), (241, 81790), (482, 40895), (1205, 16358), (2410, 8179)]