21295012

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 38118080

約数和(自身を除く): 16823068

約数列:

[1, 2, 4, 67, 134, 181, 268, 362, 439, 724, 878, 1756, 12127, 24254, 29413, 48508, 58826, 79459, 117652, 158918, 317836, 5323753, 10647506, 21295012]

約数ペア:

[(1, 21295012), (2, 10647506), (4, 5323753), (67, 317836), (134, 158918), (181, 117652), (268, 79459), (362, 58826), (439, 48508), (724, 29413), (878, 24254), (1756, 12127)]