21106245

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{719}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14836155

約数列:

[1, 3, 5, 15, 19, 57, 95, 103, 285, 309, 515, 719, 1545, 1957, 2157, 3595, 5871, 9785, 10785, 13661, 29355, 40983, 68305, 74057, 204915, 222171, 370285, 1110855, 1407083, 4221249, 7035415, 21106245]

約数ペア:

[(1, 21106245), (3, 7035415), (5, 4221249), (15, 1407083), (19, 1110855), (57, 370285), (95, 222171), (103, 204915), (285, 74057), (309, 68305), (515, 40983), (719, 29355), (1545, 13661), (1957, 10785), (2157, 9785), (3595, 5871)]