21519804

素因数分解:

$2^2\times 3^1\times {\mathrm{823}}^1\times {\mathrm{2179}}^1$

素因数の和:3009

約数の個数: 24

約数和(自身を含む): 50296960

約数和(自身を除く): 28777156

約数列:

[1, 2, 3, 4, 6, 12, 823, 1646, 2179, 2469, 3292, 4358, 4938, 6537, 8716, 9876, 13074, 26148, 1793317, 3586634, 5379951, 7173268, 10759902, 21519804]

約数ペア:

[(1, 21519804), (2, 10759902), (3, 7173268), (4, 5379951), (6, 3586634), (12, 1793317), (823, 26148), (1646, 13074), (2179, 9876), (2469, 8716), (3292, 6537), (4358, 4938)]