20421570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52363}}^1$

素因数の和:52386

約数の個数: 32

約数和(自身を含む): 52782912

約数和(自身を除く): 32361342

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52363, 104726, 157089, 261815, 314178, 523630, 680719, 785445, 1361438, 1570890, 2042157, 3403595, 4084314, 6807190, 10210785, 20421570]

約数ペア:

[(1, 20421570), (2, 10210785), (3, 6807190), (5, 4084314), (6, 3403595), (10, 2042157), (13, 1570890), (15, 1361438), (26, 785445), (30, 680719), (39, 523630), (65, 314178), (78, 261815), (130, 157089), (195, 104726), (390, 52363)]