20491611

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13367}}^1$

素因数の和:13450

約数の個数: 16

約数和(自身を含む): 31655424

約数和(自身を除く): 11163813

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13367, 40101, 93569, 280707, 975791, 2927373, 6830537, 20491611]

約数ペア:

[(1, 20491611), (3, 6830537), (7, 2927373), (21, 975791), (73, 280707), (219, 93569), (511, 40101), (1533, 13367)]