21993066

素因数分解:

$2^1\times 3^3\times {\mathrm{131}}^1\times {\mathrm{3109}}^1$

素因数の和:3251

約数の個数: 32

約数和(自身を含む): 49262400

約数和(自身を除く): 27269334

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131, 262, 393, 786, 1179, 2358, 3109, 3537, 6218, 7074, 9327, 18654, 27981, 55962, 83943, 167886, 407279, 814558, 1221837, 2443674, 3665511, 7331022, 10996533, 21993066]

約数ペア:

[(1, 21993066), (2, 10996533), (3, 7331022), (6, 3665511), (9, 2443674), (18, 1221837), (27, 814558), (54, 407279), (131, 167886), (262, 83943), (393, 55962), (786, 27981), (1179, 18654), (2358, 9327), (3109, 7074), (3537, 6218)]