21381654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509087}}^1$

素因数の和:509099

約数の個数: 16

約数和(自身を含む): 48872448

約数和(自身を除く): 27490794

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509087, 1018174, 1527261, 3054522, 3563609, 7127218, 10690827, 21381654]

約数ペア:

[(1, 21381654), (2, 10690827), (3, 7127218), (6, 3563609), (7, 3054522), (14, 1527261), (21, 1018174), (42, 509087)]