21631504

素因数分解:

$2^4\times {\mathrm{677}}^1\times {\mathrm{1997}}^1$

素因数の和:2682

約数の個数: 20

約数和(自身を含む): 41993964

約数和(自身を除く): 20362460

約数列:

[1, 2, 4, 8, 16, 677, 1354, 1997, 2708, 3994, 5416, 7988, 10832, 15976, 31952, 1351969, 2703938, 5407876, 10815752, 21631504]

約数ペア:

[(1, 21631504), (2, 10815752), (4, 5407876), (8, 2703938), (16, 1351969), (677, 31952), (1354, 15976), (1997, 10832), (2708, 7988), (3994, 5416)]