21537758

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1544

約数の個数: 24

約数和(自身を含む): 36117480

約数和(自身を除く): 14579722

約数列:

[1, 2, 11, 22, 61, 121, 122, 242, 671, 1342, 1459, 2918, 7381, 14762, 16049, 32098, 88999, 176539, 177998, 353078, 978989, 1957978, 10768879, 21537758]

約数ペア:

[(1, 21537758), (2, 10768879), (11, 1957978), (22, 978989), (61, 353078), (121, 177998), (122, 176539), (242, 88999), (671, 32098), (1342, 16049), (1459, 14762), (2918, 7381)]