21102978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{270551}}^1$

素因数の和:270569

約数の個数: 16

約数和(自身を含む): 45452736

約数和(自身を除く): 24349758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 270551, 541102, 811653, 1623306, 3517163, 7034326, 10551489, 21102978]

約数ペア:

[(1, 21102978), (2, 10551489), (3, 7034326), (6, 3517163), (13, 1623306), (26, 811653), (39, 541102), (78, 270551)]