21683426

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2149

約数の個数: 16

約数和(自身を含む): 33446520

約数和(自身を除く): 11763094

約数列:

[1, 2, 61, 89, 122, 178, 1997, 3994, 5429, 10858, 121817, 177733, 243634, 355466, 10841713, 21683426]

約数ペア:

[(1, 21683426), (2, 10841713), (61, 355466), (89, 243634), (122, 177733), (178, 121817), (1997, 10858), (3994, 5429)]