21799953

素因数分解:

$3^2\times 7^2\times {\mathrm{49433}}^1$

素因数の和:49453

約数の個数: 18

約数和(自身を含む): 36630594

約数和(自身を除く): 14830641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 49433, 148299, 346031, 444897, 1038093, 2422217, 3114279, 7266651, 21799953]

約数ペア:

[(1, 21799953), (3, 7266651), (7, 3114279), (9, 2422217), (21, 1038093), (49, 444897), (63, 346031), (147, 148299), (441, 49433)]