21500535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2111}}^1$

素因数の和:2223

約数の個数: 32

約数和(自身を含む): 39739392

約数和(自身を除く): 18238857

約数列:

[1, 3, 5, 7, 15, 21, 35, 97, 105, 291, 485, 679, 1455, 2037, 2111, 3395, 6333, 10185, 10555, 14777, 31665, 44331, 73885, 204767, 221655, 614301, 1023835, 1433369, 3071505, 4300107, 7166845, 21500535]

約数ペア:

[(1, 21500535), (3, 7166845), (5, 4300107), (7, 3071505), (15, 1433369), (21, 1023835), (35, 614301), (97, 221655), (105, 204767), (291, 73885), (485, 44331), (679, 31665), (1455, 14777), (2037, 10555), (2111, 10185), (3395, 6333)]