21811668

素因数分解:

$2^2\times 3^1\times {\mathrm{509}}^1\times {\mathrm{3571}}^1$

素因数の和:4087

約数の個数: 24

約数和(自身を含む): 51008160

約数和(自身を除く): 29196492

約数列:

[1, 2, 3, 4, 6, 12, 509, 1018, 1527, 2036, 3054, 3571, 6108, 7142, 10713, 14284, 21426, 42852, 1817639, 3635278, 5452917, 7270556, 10905834, 21811668]

約数ペア:

[(1, 21811668), (2, 10905834), (3, 7270556), (4, 5452917), (6, 3635278), (12, 1817639), (509, 42852), (1018, 21426), (1527, 14284), (2036, 10713), (3054, 7142), (3571, 6108)]