21666500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{2549}}^1$

素因数の和:2585

約数の個数: 48

約数和(自身を含む): 50122800

約数和(自身を除く): 28456300

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 500, 850, 1700, 2125, 2549, 4250, 5098, 8500, 10196, 12745, 25490, 43333, 50980, 63725, 86666, 127450, 173332, 216665, 254900, 318625, 433330, 637250, 866660, 1083325, 1274500, 2166650, 4333300, 5416625, 10833250, 21666500]

約数ペア:

[(1, 21666500), (2, 10833250), (4, 5416625), (5, 4333300), (10, 2166650), (17, 1274500), (20, 1083325), (25, 866660), (34, 637250), (50, 433330), (68, 318625), (85, 254900), (100, 216665), (125, 173332), (170, 127450), (250, 86666), (340, 63725), (425, 50980), (500, 43333), (850, 25490), (1700, 12745), (2125, 10196), (2549, 8500), (4250, 5098)]