20994668

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 37453584

約数和(自身を除く): 16458916

約数列:

[1, 2, 4, 101, 157, 202, 314, 331, 404, 628, 662, 1324, 15857, 31714, 33431, 51967, 63428, 66862, 103934, 133724, 207868, 5248667, 10497334, 20994668]

約数ペア:

[(1, 20994668), (2, 10497334), (4, 5248667), (101, 207868), (157, 133724), (202, 103934), (314, 66862), (331, 63428), (404, 51967), (628, 33431), (662, 31714), (1324, 15857)]