21943180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22391}}^1$

素因数の和:22414

約数の個数: 36

約数和(自身を含む): 53606448

約数和(自身を除く): 31663268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22391, 44782, 89564, 111955, 156737, 223910, 313474, 447820, 626948, 783685, 1097159, 1567370, 2194318, 3134740, 4388636, 5485795, 10971590, 21943180]

約数ペア:

[(1, 21943180), (2, 10971590), (4, 5485795), (5, 4388636), (7, 3134740), (10, 2194318), (14, 1567370), (20, 1097159), (28, 783685), (35, 626948), (49, 447820), (70, 313474), (98, 223910), (140, 156737), (196, 111955), (245, 89564), (490, 44782), (980, 22391)]