21990123118

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{773}}^1\times {\mathrm{836699}}^1$

素因数の和:837491

約数の個数: 16

約数和(自身を含む): 34970713200

約数和(自身を除く): 12980590082

約数列:

[1, 2, 17, 34, 773, 1546, 13141, 26282, 836699, 1673398, 14223883, 28447766, 646768327, 1293536654, 10995061559, 21990123118]

約数ペア:

[(1, 21990123118), (2, 10995061559), (17, 1293536654), (34, 646768327), (773, 28447766), (1546, 14223883), (13141, 1673398), (26282, 836699)]