20487015

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2311}}^1$

素因数の和:2519

約数の個数: 24

約数和(自身を含む): 35706528

約数和(自身を除く): 15219513

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2311, 2955, 6933, 8865, 11555, 20799, 34665, 103995, 455267, 1365801, 2276335, 4097403, 6829005, 20487015]

約数ペア:

[(1, 20487015), (3, 6829005), (5, 4097403), (9, 2276335), (15, 1365801), (45, 455267), (197, 103995), (591, 34665), (985, 20799), (1773, 11555), (2311, 8865), (2955, 6933)]