20899844

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10513}}^1$

素因数の和:10595

約数の個数: 24

約数和(自身を含む): 42392448

約数和(自身を除く): 21492604

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10513, 21026, 42052, 73591, 147182, 294364, 746423, 1492846, 2985692, 5224961, 10449922, 20899844]

約数ペア:

[(1, 20899844), (2, 10449922), (4, 5224961), (7, 2985692), (14, 1492846), (28, 746423), (71, 294364), (142, 147182), (284, 73591), (497, 42052), (994, 21026), (1988, 10513)]