21436921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{941}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 24868800

約数和(自身を除く): 3431879

約数列:

[1, 11, 19, 109, 209, 941, 1199, 2071, 10351, 17879, 22781, 102569, 196669, 1128259, 1948811, 21436921]

約数ペア:

[(1, 21436921), (11, 1948811), (19, 1128259), (109, 196669), (209, 102569), (941, 22781), (1199, 17879), (2071, 10351)]