21431069

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{61}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 25638240

約数和(自身を除く): 4207171

約数列:

[1, 11, 19, 41, 61, 209, 451, 671, 779, 1159, 1681, 2501, 8569, 12749, 18491, 27511, 31939, 47519, 102541, 351329, 522709, 1127951, 1948279, 21431069]

約数ペア:

[(1, 21431069), (11, 1948279), (19, 1127951), (41, 522709), (61, 351329), (209, 102541), (451, 47519), (671, 31939), (779, 27511), (1159, 18491), (1681, 12749), (2501, 8569)]