20587765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 28957824

約数和(自身を除く): 8370059

約数列:

[1, 5, 11, 17, 55, 85, 97, 187, 227, 485, 935, 1067, 1135, 1649, 2497, 3859, 5335, 8245, 12485, 18139, 19295, 22019, 42449, 90695, 110095, 212245, 242209, 374323, 1211045, 1871615, 4117553, 20587765]

約数ペア:

[(1, 20587765), (5, 4117553), (11, 1871615), (17, 1211045), (55, 374323), (85, 242209), (97, 212245), (187, 110095), (227, 90695), (485, 42449), (935, 22019), (1067, 19295), (1135, 18139), (1649, 12485), (2497, 8245), (3859, 5335)]