21996243

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{419}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 33633600

約数和(自身を除く): 11637357

約数列:

[1, 3, 9, 19, 57, 171, 307, 419, 921, 1257, 2763, 3771, 5833, 7961, 17499, 23883, 52497, 71649, 128633, 385899, 1157697, 2444027, 7332081, 21996243]

約数ペア:

[(1, 21996243), (3, 7332081), (9, 2444027), (19, 1157697), (57, 385899), (171, 128633), (307, 71649), (419, 52497), (921, 23883), (1257, 17499), (2763, 7961), (3771, 5833)]