21159005

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{16339}}^1$

素因数の和:16388

約数の個数: 16

約数和(自身を含む): 29804160

約数和(自身を除く): 8645155

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 16339, 81695, 114373, 571865, 604543, 3022715, 4231801, 21159005]

約数ペア:

[(1, 21159005), (5, 4231801), (7, 3022715), (35, 604543), (37, 571865), (185, 114373), (259, 81695), (1295, 16339)]