21116556

素因数分解:

$2^2\times 3^2\times {\mathrm{586571}}^1$

素因数の和:586581

約数の個数: 18

約数和(自身を含む): 53378052

約数和(自身を除く): 32261496

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 586571, 1173142, 1759713, 2346284, 3519426, 5279139, 7038852, 10558278, 21116556]

約数ペア:

[(1, 21116556), (2, 10558278), (3, 7038852), (4, 5279139), (6, 3519426), (9, 2346284), (12, 1759713), (18, 1173142), (36, 586571)]