21297222

素因数分解:

$2^1\times 3^3\times {\mathrm{394393}}^1$

素因数の和:394404

約数の個数: 16

約数和(自身を含む): 47327280

約数和(自身を除く): 26030058

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394393, 788786, 1183179, 2366358, 3549537, 7099074, 10648611, 21297222]

約数ペア:

[(1, 21297222), (2, 10648611), (3, 7099074), (6, 3549537), (9, 2366358), (18, 1183179), (27, 788786), (54, 394393)]