20474775

素因数分解:

$3^4\times 5^2\times {\mathrm{10111}}^1$

素因数の和:10133

約数の個数: 30

約数和(自身を含む): 37930112

約数和(自身を除く): 17455337

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10111, 30333, 50555, 90999, 151665, 252775, 272997, 454995, 758325, 818991, 1364985, 2274975, 4094955, 6824925, 20474775]

約数ペア:

[(1, 20474775), (3, 6824925), (5, 4094955), (9, 2274975), (15, 1364985), (25, 818991), (27, 758325), (45, 454995), (75, 272997), (81, 252775), (135, 151665), (225, 90999), (405, 50555), (675, 30333), (2025, 10111)]