21631380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1283}}^1$

素因数の和:1576

約数の個数: 48

約数和(自身を含む): 60830784

約数和(自身を除く): 39199404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1283, 1405, 1686, 2566, 2810, 3372, 3849, 4215, 5132, 5620, 6415, 7698, 8430, 12830, 15396, 16860, 19245, 25660, 38490, 76980, 360523, 721046, 1081569, 1442092, 1802615, 2163138, 3605230, 4326276, 5407845, 7210460, 10815690, 21631380]

約数ペア:

[(1, 21631380), (2, 10815690), (3, 7210460), (4, 5407845), (5, 4326276), (6, 3605230), (10, 2163138), (12, 1802615), (15, 1442092), (20, 1081569), (30, 721046), (60, 360523), (281, 76980), (562, 38490), (843, 25660), (1124, 19245), (1283, 16860), (1405, 15396), (1686, 12830), (2566, 8430), (2810, 7698), (3372, 6415), (3849, 5620), (4215, 5132)]