21016748

素因数分解:

$2^2\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 37422000

約数和(自身を除く): 16405252

約数列:

[1, 2, 4, 149, 179, 197, 298, 358, 394, 596, 716, 788, 26671, 29353, 35263, 53342, 58706, 70526, 106684, 117412, 141052, 5254187, 10508374, 21016748]

約数ペア:

[(1, 21016748), (2, 10508374), (4, 5254187), (149, 141052), (179, 117412), (197, 106684), (298, 70526), (358, 58706), (394, 53342), (596, 35263), (716, 29353), (788, 26671)]