21724045

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 10935155

約数列:

[1, 5, 7, 17, 29, 35, 85, 119, 145, 203, 493, 595, 1015, 1259, 2465, 3451, 6295, 8813, 17255, 21403, 36511, 44065, 107015, 149821, 182555, 255577, 620687, 749105, 1277885, 3103435, 4344809, 21724045]

約数ペア:

[(1, 21724045), (5, 4344809), (7, 3103435), (17, 1277885), (29, 749105), (35, 620687), (85, 255577), (119, 182555), (145, 149821), (203, 107015), (493, 44065), (595, 36511), (1015, 21403), (1259, 17255), (2465, 8813), (3451, 6295)]