16211820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1721}}^1$

素因数の和:1890

約数の個数: 48

約数和(自身を含む): 45708768

約数和(自身を除く): 29496948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1721, 1884, 2355, 3140, 3442, 4710, 5163, 6884, 8605, 9420, 10326, 17210, 20652, 25815, 34420, 51630, 103260, 270197, 540394, 810591, 1080788, 1350985, 1621182, 2701970, 3242364, 4052955, 5403940, 8105910, 16211820]

約数ペア:

[(1, 16211820), (2, 8105910), (3, 5403940), (4, 4052955), (5, 3242364), (6, 2701970), (10, 1621182), (12, 1350985), (15, 1080788), (20, 810591), (30, 540394), (60, 270197), (157, 103260), (314, 51630), (471, 34420), (628, 25815), (785, 20652), (942, 17210), (1570, 10326), (1721, 9420), (1884, 8605), (2355, 6884), (3140, 5163), (3442, 4710)]