21138166

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 37313280

約数和(自身を除く): 16175114

約数列:

[1, 2, 7, 14, 59, 118, 157, 163, 314, 326, 413, 826, 1099, 1141, 2198, 2282, 9263, 9617, 18526, 19234, 25591, 51182, 64841, 67319, 129682, 134638, 179137, 358274, 1509869, 3019738, 10569083, 21138166]

約数ペア:

[(1, 21138166), (2, 10569083), (7, 3019738), (14, 1509869), (59, 358274), (118, 179137), (157, 134638), (163, 129682), (314, 67319), (326, 64841), (413, 51182), (826, 25591), (1099, 19234), (1141, 18526), (2198, 9617), (2282, 9263)]