18781772

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1729

約数の個数: 24

約数和(自身を含む): 34165152

約数和(自身を除く): 15383380

約数列:

[1, 2, 4, 41, 71, 82, 142, 164, 284, 1613, 2911, 3226, 5822, 6452, 11644, 66133, 114523, 132266, 229046, 264532, 458092, 4695443, 9390886, 18781772]

約数ペア:

[(1, 18781772), (2, 9390886), (4, 4695443), (41, 458092), (71, 264532), (82, 229046), (142, 132266), (164, 114523), (284, 66133), (1613, 11644), (2911, 6452), (3226, 5822)]