21317065

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3257}}^1$

素因数の和:3297

約数の個数: 32

約数和(自身を含む): 33778944

約数和(自身を除く): 12461879

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 3257, 6545, 16285, 22799, 35827, 55369, 113995, 179135, 250789, 276845, 387583, 609059, 1253945, 1937915, 3045295, 4263413, 21317065]

約数ペア:

[(1, 21317065), (5, 4263413), (7, 3045295), (11, 1937915), (17, 1253945), (35, 609059), (55, 387583), (77, 276845), (85, 250789), (119, 179135), (187, 113995), (385, 55369), (595, 35827), (935, 22799), (1309, 16285), (3257, 6545)]