20874565

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1229}}^1$

素因数の和:1356

約数の個数: 16

約数和(自身を含む): 25977600

約数和(自身を除く): 5103035

約数列:

[1, 5, 43, 79, 215, 395, 1229, 3397, 6145, 16985, 52847, 97091, 264235, 485455, 4174913, 20874565]

約数ペア:

[(1, 20874565), (5, 4174913), (43, 485455), (79, 264235), (215, 97091), (395, 52847), (1229, 16985), (3397, 6145)]