21608335

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 31248000

約数和(自身を除く): 9639665

約数列:

[1, 5, 7, 29, 35, 61, 145, 203, 305, 349, 427, 1015, 1745, 1769, 2135, 2443, 8845, 10121, 12215, 12383, 21289, 50605, 61915, 70847, 106445, 149023, 354235, 617381, 745115, 3086905, 4321667, 21608335]

約数ペア:

[(1, 21608335), (5, 4321667), (7, 3086905), (29, 745115), (35, 617381), (61, 354235), (145, 149023), (203, 106445), (305, 70847), (349, 61915), (427, 50605), (1015, 21289), (1745, 12383), (1769, 12215), (2135, 10121), (2443, 8845)]