21166960

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{7151}}^1$

素因数の和:7201

約数の個数: 40

約数和(自身を含む): 50550336

約数和(自身を除く): 29383376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 7151, 14302, 28604, 35755, 57208, 71510, 114416, 143020, 264587, 286040, 529174, 572080, 1058348, 1322935, 2116696, 2645870, 4233392, 5291740, 10583480, 21166960]

約数ペア:

[(1, 21166960), (2, 10583480), (4, 5291740), (5, 4233392), (8, 2645870), (10, 2116696), (16, 1322935), (20, 1058348), (37, 572080), (40, 529174), (74, 286040), (80, 264587), (148, 143020), (185, 114416), (296, 71510), (370, 57208), (592, 35755), (740, 28604), (1480, 14302), (2960, 7151)]