19918020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331967}}^1$

素因数の和:331979

約数の個数: 24

約数和(自身を含む): 55770624

約数和(自身を除く): 35852604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331967, 663934, 995901, 1327868, 1659835, 1991802, 3319670, 3983604, 4979505, 6639340, 9959010, 19918020]

約数ペア:

[(1, 19918020), (2, 9959010), (3, 6639340), (4, 4979505), (5, 3983604), (6, 3319670), (10, 1991802), (12, 1659835), (15, 1327868), (20, 995901), (30, 663934), (60, 331967)]