20878236

素因数分解:

$2^2\times 3^4\times {\mathrm{64439}}^1$

素因数の和:64455

約数の個数: 30

約数和(自身を含む): 54580680

約数和(自身を除く): 33702444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 64439, 128878, 193317, 257756, 386634, 579951, 773268, 1159902, 1739853, 2319804, 3479706, 5219559, 6959412, 10439118, 20878236]

約数ペア:

[(1, 20878236), (2, 10439118), (3, 6959412), (4, 5219559), (6, 3479706), (9, 2319804), (12, 1739853), (18, 1159902), (27, 773268), (36, 579951), (54, 386634), (81, 257756), (108, 193317), (162, 128878), (324, 64439)]