13321217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 17740800

約数和(自身を除く): 4419583

約数列:

[1, 7, 13, 17, 79, 91, 109, 119, 221, 553, 763, 1027, 1343, 1417, 1547, 1853, 7189, 8611, 9401, 9919, 12971, 17459, 24089, 60277, 111943, 122213, 146387, 168623, 783601, 1024709, 1903031, 13321217]

約数ペア:

[(1, 13321217), (7, 1903031), (13, 1024709), (17, 783601), (79, 168623), (91, 146387), (109, 122213), (119, 111943), (221, 60277), (553, 24089), (763, 17459), (1027, 12971), (1343, 9919), (1417, 9401), (1547, 8611), (1853, 7189)]