13212355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 18063360

約数和(自身を除く): 4851005

約数列:

[1, 5, 13, 31, 65, 79, 83, 155, 395, 403, 415, 1027, 1079, 2015, 2449, 2573, 5135, 5395, 6557, 12245, 12865, 31837, 32785, 33449, 85241, 159185, 167245, 203267, 426205, 1016335, 2642471, 13212355]

約数ペア:

[(1, 13212355), (5, 2642471), (13, 1016335), (31, 426205), (65, 203267), (79, 167245), (83, 159185), (155, 85241), (395, 33449), (403, 32785), (415, 31837), (1027, 12865), (1079, 12245), (2015, 6557), (2449, 5395), (2573, 5135)]