21460660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1399}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 49392000

約数和(自身を除く): 27931340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1399, 1534, 2798, 3068, 3835, 5596, 6995, 7670, 13990, 15340, 18187, 27980, 36374, 72748, 82541, 90935, 165082, 181870, 330164, 363740, 412705, 825410, 1073033, 1650820, 2146066, 4292132, 5365165, 10730330, 21460660]

約数ペア:

[(1, 21460660), (2, 10730330), (4, 5365165), (5, 4292132), (10, 2146066), (13, 1650820), (20, 1073033), (26, 825410), (52, 412705), (59, 363740), (65, 330164), (118, 181870), (130, 165082), (236, 90935), (260, 82541), (295, 72748), (590, 36374), (767, 27980), (1180, 18187), (1399, 15340), (1534, 13990), (2798, 7670), (3068, 6995), (3835, 5596)]