20491012

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{487}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 36701504

約数和(自身を除く): 16210492

約数列:

[1, 2, 4, 67, 134, 157, 268, 314, 487, 628, 974, 1948, 10519, 21038, 32629, 42076, 65258, 76459, 130516, 152918, 305836, 5122753, 10245506, 20491012]

約数ペア:

[(1, 20491012), (2, 10245506), (4, 5122753), (67, 305836), (134, 152918), (157, 130516), (268, 76459), (314, 65258), (487, 42076), (628, 32629), (974, 21038), (1948, 10519)]