21459361

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1217}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 26893440

約数和(自身を除く): 5434079

約数列:

[1, 7, 11, 77, 229, 1217, 1603, 2519, 8519, 13387, 17633, 93709, 278693, 1950851, 3065623, 21459361]

約数ペア:

[(1, 21459361), (7, 3065623), (11, 1950851), (77, 278693), (229, 93709), (1217, 17633), (1603, 13387), (2519, 8519)]