21821750

素因数分解:

$2^1\times 5^3\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 41154048

約数和(自身を除く): 19332298

約数列:

[1, 2, 5, 10, 25, 50, 125, 191, 250, 382, 457, 914, 955, 1910, 2285, 4570, 4775, 9550, 11425, 22850, 23875, 47750, 57125, 87287, 114250, 174574, 436435, 872870, 2182175, 4364350, 10910875, 21821750]

約数ペア:

[(1, 21821750), (2, 10910875), (5, 4364350), (10, 2182175), (25, 872870), (50, 436435), (125, 174574), (191, 114250), (250, 87287), (382, 57125), (457, 47750), (914, 23875), (955, 22850), (1910, 11425), (2285, 9550), (4570, 4775)]