17965415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 24748416

約数和(自身を除く): 6783001

約数列:

[1, 5, 13, 23, 61, 65, 115, 197, 299, 305, 793, 985, 1403, 1495, 2561, 3965, 4531, 7015, 12017, 12805, 18239, 22655, 58903, 60085, 91195, 156221, 276391, 294515, 781105, 1381955, 3593083, 17965415]

約数ペア:

[(1, 17965415), (5, 3593083), (13, 1381955), (23, 781105), (61, 294515), (65, 276391), (115, 156221), (197, 91195), (299, 60085), (305, 58903), (793, 22655), (985, 18239), (1403, 12805), (1495, 12017), (2561, 7015), (3965, 4531)]