21538150

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{25339}}^1$

素因数の和:25368

約数の個数: 24

約数和(自身を含む): 42419160

約数和(自身を除く): 20881010

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 25339, 50678, 126695, 253390, 430763, 633475, 861526, 1266950, 2153815, 4307630, 10769075, 21538150]

約数ペア:

[(1, 21538150), (2, 10769075), (5, 4307630), (10, 2153815), (17, 1266950), (25, 861526), (34, 633475), (50, 430763), (85, 253390), (170, 126695), (425, 50678), (850, 25339)]