20677815

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1721}}^1$

素因数の和:1824

約数の個数: 32

約数和(自身を含む): 37195200

約数和(自身を除く): 16517385

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 1721, 2403, 4005, 5163, 8605, 12015, 15489, 25815, 46467, 77445, 153169, 232335, 459507, 765845, 1378521, 2297535, 4135563, 6892605, 20677815]

約数ペア:

[(1, 20677815), (3, 6892605), (5, 4135563), (9, 2297535), (15, 1378521), (27, 765845), (45, 459507), (89, 232335), (135, 153169), (267, 77445), (445, 46467), (801, 25815), (1335, 15489), (1721, 12015), (2403, 8605), (4005, 5163)]