21559410

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{569}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 56286360

約数和(自身を除く): 34726950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 421, 569, 842, 1138, 1263, 1707, 2105, 2526, 2845, 3414, 3789, 4210, 5121, 5690, 6315, 7578, 8535, 10242, 12630, 17070, 18945, 25605, 37890, 51210, 239549, 479098, 718647, 1197745, 1437294, 2155941, 2395490, 3593235, 4311882, 7186470, 10779705, 21559410]

約数ペア:

[(1, 21559410), (2, 10779705), (3, 7186470), (5, 4311882), (6, 3593235), (9, 2395490), (10, 2155941), (15, 1437294), (18, 1197745), (30, 718647), (45, 479098), (90, 239549), (421, 51210), (569, 37890), (842, 25605), (1138, 18945), (1263, 17070), (1707, 12630), (2105, 10242), (2526, 8535), (2845, 7578), (3414, 6315), (3789, 5690), (4210, 5121)]