21051259

素因数分解:

${\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 22896000

約数和(自身を除く): 1844741

約数列:

[1, 19, 59, 89, 211, 1121, 1691, 4009, 5251, 12449, 18779, 99769, 236531, 356801, 1107961, 21051259]

約数ペア:

[(1, 21051259), (19, 1107961), (59, 356801), (89, 236531), (211, 99769), (1121, 18779), (1691, 12449), (4009, 5251)]