20877084

素因数分解:

$2^2\times 3^2\times {\mathrm{439}}^1\times {\mathrm{1321}}^1$

素因数の和:1770

約数の個数: 36

約数和(自身を含む): 52932880

約数和(自身を除く): 32055796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 439, 878, 1317, 1321, 1756, 2634, 2642, 3951, 3963, 5268, 5284, 7902, 7926, 11889, 15804, 15852, 23778, 47556, 579919, 1159838, 1739757, 2319676, 3479514, 5219271, 6959028, 10438542, 20877084]

約数ペア:

[(1, 20877084), (2, 10438542), (3, 6959028), (4, 5219271), (6, 3479514), (9, 2319676), (12, 1739757), (18, 1159838), (36, 579919), (439, 47556), (878, 23778), (1317, 15852), (1321, 15804), (1756, 11889), (2634, 7926), (2642, 7902), (3951, 5284), (3963, 5268)]