247978335

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{907}}^1\times {\mathrm{1657}}^1$

素因数の和:2583

約数の個数: 32

約数和(自身を含む): 433573632

約数和(自身を除く): 185595297

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 907, 1657, 2721, 4535, 4971, 8285, 9977, 13605, 18227, 24855, 29931, 49885, 54681, 91135, 149655, 273405, 1502899, 4508697, 7514495, 16531889, 22543485, 49595667, 82659445, 247978335]

約数ペア:

[(1, 247978335), (3, 82659445), (5, 49595667), (11, 22543485), (15, 16531889), (33, 7514495), (55, 4508697), (165, 1502899), (907, 273405), (1657, 149655), (2721, 91135), (4535, 54681), (4971, 49885), (8285, 29931), (9977, 24855), (13605, 18227)]