21650266

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12457}}^1$

素因数の和:12549

約数の個数: 16

約数和(自身を含む): 35879040

約数和(自身を除く): 14228774

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12457, 24914, 137027, 274054, 984103, 1968206, 10825133, 21650266]

約数ペア:

[(1, 21650266), (2, 10825133), (11, 1968206), (22, 984103), (79, 274054), (158, 137027), (869, 24914), (1738, 12457)]