21656637

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1423}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 33321600

約数和(自身を除く): 11664963

約数列:

[1, 3, 9, 19, 57, 89, 171, 267, 801, 1423, 1691, 4269, 5073, 12807, 15219, 27037, 81111, 126647, 243333, 379941, 1139823, 2406293, 7218879, 21656637]

約数ペア:

[(1, 21656637), (3, 7218879), (9, 2406293), (19, 1139823), (57, 379941), (89, 243333), (171, 126647), (267, 81111), (801, 27037), (1423, 15219), (1691, 12807), (4269, 5073)]