20978712

素因数分解:

$2^3\times 3^2\times {\mathrm{291371}}^1$

素因数の和:291383

約数の個数: 24

約数和(自身を含む): 56817540

約数和(自身を除く): 35838828

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 291371, 582742, 874113, 1165484, 1748226, 2330968, 2622339, 3496452, 5244678, 6992904, 10489356, 20978712]

約数ペア:

[(1, 20978712), (2, 10489356), (3, 6992904), (4, 5244678), (6, 3496452), (8, 2622339), (9, 2330968), (12, 1748226), (18, 1165484), (24, 874113), (36, 582742), (72, 291371)]