20156843

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:562

約数の個数: 16

約数和(自身を含む): 23721984

約数和(自身を除く): 3565141

約数列:

[1, 7, 47, 197, 311, 329, 1379, 2177, 9259, 14617, 61267, 64813, 102319, 428869, 2879549, 20156843]

約数ペア:

[(1, 20156843), (7, 2879549), (47, 428869), (197, 102319), (311, 64813), (329, 61267), (1379, 14617), (2177, 9259)]