21497988

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^2\times {\mathrm{811}}^1$

素因数の和:912

約数の個数: 36

約数和(自身を含む): 51315152

約数和(自身を除く): 29817164

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 141, 188, 282, 564, 811, 1622, 2209, 2433, 3244, 4418, 4866, 6627, 8836, 9732, 13254, 26508, 38117, 76234, 114351, 152468, 228702, 457404, 1791499, 3582998, 5374497, 7165996, 10748994, 21497988]

約数ペア:

[(1, 21497988), (2, 10748994), (3, 7165996), (4, 5374497), (6, 3582998), (12, 1791499), (47, 457404), (94, 228702), (141, 152468), (188, 114351), (282, 76234), (564, 38117), (811, 26508), (1622, 13254), (2209, 9732), (2433, 8836), (3244, 6627), (4418, 4866)]