989938

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:369

約数の個数: 16

約数和(自身を含む): 1584000

約数和(自身を除く): 594062

約数列:

[1, 2, 19, 38, 109, 218, 239, 478, 2071, 4142, 4541, 9082, 26051, 52102, 494969, 989938]

約数ペア:

[(1, 989938), (2, 494969), (19, 52102), (38, 26051), (109, 9082), (218, 4541), (239, 4142), (478, 2071)]