399267

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 24

約数和(自身を含む): 652080

約数和(自身を除く): 252813

約数列:

[1, 3, 9, 11, 33, 37, 99, 109, 111, 327, 333, 407, 981, 1199, 1221, 3597, 3663, 4033, 10791, 12099, 36297, 44363, 133089, 399267]

約数ペア:

[(1, 399267), (3, 133089), (9, 44363), (11, 36297), (33, 12099), (37, 10791), (99, 4033), (109, 3663), (111, 3597), (327, 1221), (333, 1199), (407, 981)]