20983263

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 11963937

約数列:

[1, 3, 7, 21, 89, 103, 109, 267, 309, 327, 623, 721, 763, 1869, 2163, 2289, 9167, 9701, 11227, 27501, 29103, 33681, 64169, 67907, 78589, 192507, 203721, 235767, 999203, 2997609, 6994421, 20983263]

約数ペア:

[(1, 20983263), (3, 6994421), (7, 2997609), (21, 999203), (89, 235767), (103, 203721), (109, 192507), (267, 78589), (309, 67907), (327, 64169), (623, 33681), (721, 29103), (763, 27501), (1869, 11227), (2163, 9701), (2289, 9167)]