21254670

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{78721}}^1$

素因数の和:78737

約数の個数: 32

約数和(自身を含む): 56679840

約数和(自身を除く): 35425170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 78721, 157442, 236163, 393605, 472326, 708489, 787210, 1180815, 1416978, 2125467, 2361630, 3542445, 4250934, 7084890, 10627335, 21254670]

約数ペア:

[(1, 21254670), (2, 10627335), (3, 7084890), (5, 4250934), (6, 3542445), (9, 2361630), (10, 2125467), (15, 1416978), (18, 1180815), (27, 787210), (30, 708489), (45, 472326), (54, 393605), (90, 236163), (135, 157442), (270, 78721)]