20573891

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 23892480

約数和(自身を除く): 3318589

約数列:

[1, 13, 23, 67, 79, 169, 299, 871, 1027, 1541, 1817, 3887, 5293, 11323, 13351, 20033, 23621, 68809, 121739, 260429, 307073, 894517, 1582607, 20573891]

約数ペア:

[(1, 20573891), (13, 1582607), (23, 894517), (67, 307073), (79, 260429), (169, 121739), (299, 68809), (871, 23621), (1027, 20033), (1541, 13351), (1817, 11323), (3887, 5293)]