21626757

素因数分解:

$3^5\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 32949280

約数和(自身を除く): 11322523

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 1459, 1647, 4377, 4941, 13131, 14823, 39393, 88999, 118179, 266997, 354537, 800991, 2402973, 7208919, 21626757]

約数ペア:

[(1, 21626757), (3, 7208919), (9, 2402973), (27, 800991), (61, 354537), (81, 266997), (183, 118179), (243, 88999), (549, 39393), (1459, 14823), (1647, 13131), (4377, 4941)]