20374185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 35376768

約数和(自身を除く): 15002583

約数列:

[1, 3, 5, 13, 15, 39, 65, 163, 195, 489, 641, 815, 1923, 2119, 2445, 3205, 6357, 8333, 9615, 10595, 24999, 31785, 41665, 104483, 124995, 313449, 522415, 1358279, 1567245, 4074837, 6791395, 20374185]

約数ペア:

[(1, 20374185), (3, 6791395), (5, 4074837), (13, 1567245), (15, 1358279), (39, 522415), (65, 313449), (163, 124995), (195, 104483), (489, 41665), (641, 31785), (815, 24999), (1923, 10595), (2119, 9615), (2445, 8333), (3205, 6357)]