20984835

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2539}}^1$

素因数の和:2595

約数の個数: 32

約数和(自身を含む): 36576000

約数和(自身を除く): 15591165

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2539, 2755, 7617, 8265, 12695, 38085, 48241, 73631, 144723, 220893, 241205, 368155, 723615, 1104465, 1398989, 4196967, 6994945, 20984835]

約数ペア:

[(1, 20984835), (3, 6994945), (5, 4196967), (15, 1398989), (19, 1104465), (29, 723615), (57, 368155), (87, 241205), (95, 220893), (145, 144723), (285, 73631), (435, 48241), (551, 38085), (1653, 12695), (2539, 8265), (2755, 7617)]