20908275

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9613}}^1$

素因数の和:9655

約数の個数: 24

約数和(自身を含む): 35764080

約数和(自身を除く): 14855805

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9613, 28839, 48065, 144195, 240325, 278777, 720975, 836331, 1393885, 4181655, 6969425, 20908275]

約数ペア:

[(1, 20908275), (3, 6969425), (5, 4181655), (15, 1393885), (25, 836331), (29, 720975), (75, 278777), (87, 240325), (145, 144195), (435, 48065), (725, 28839), (2175, 9613)]