21047538

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{21521}}^1$

素因数の和:21689

約数の個数: 16

約数和(自身を含む): 42355296

約数和(自身を除く): 21307758

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 21521, 43042, 64563, 129126, 3507923, 7015846, 10523769, 21047538]

約数ペア:

[(1, 21047538), (2, 10523769), (3, 7015846), (6, 3507923), (163, 129126), (326, 64563), (489, 43042), (978, 21521)]