21785340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1283}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 61262208

約数和(自身を除く): 39476868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 283, 566, 849, 1132, 1283, 1415, 1698, 2566, 2830, 3396, 3849, 4245, 5132, 5660, 6415, 7698, 8490, 12830, 15396, 16980, 19245, 25660, 38490, 76980, 363089, 726178, 1089267, 1452356, 1815445, 2178534, 3630890, 4357068, 5446335, 7261780, 10892670, 21785340]

約数ペア:

[(1, 21785340), (2, 10892670), (3, 7261780), (4, 5446335), (5, 4357068), (6, 3630890), (10, 2178534), (12, 1815445), (15, 1452356), (20, 1089267), (30, 726178), (60, 363089), (283, 76980), (566, 38490), (849, 25660), (1132, 19245), (1283, 16980), (1415, 15396), (1698, 12830), (2566, 8490), (2830, 7698), (3396, 6415), (3849, 5660), (4245, 5132)]