218565981

素因数分解:

$3^2\times {\mathrm{179}}^1\times {\mathrm{135671}}^1$

素因数の和:135856

約数の個数: 12

約数和(自身を含む): 317472480

約数和(自身を除く): 98906499

約数列:

[1, 3, 9, 179, 537, 1611, 135671, 407013, 1221039, 24285109, 72855327, 218565981]

約数ペア:

[(1, 218565981), (3, 72855327), (9, 24285109), (179, 1221039), (537, 407013), (1611, 135671)]