21549957

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 12512379

約数列:

[1, 3, 11, 13, 33, 39, 143, 191, 263, 429, 573, 789, 2101, 2483, 2893, 3419, 6303, 7449, 8679, 10257, 27313, 37609, 50233, 81939, 112827, 150699, 552563, 653029, 1657689, 1959087, 7183319, 21549957]

約数ペア:

[(1, 21549957), (3, 7183319), (11, 1959087), (13, 1657689), (33, 653029), (39, 552563), (143, 150699), (191, 112827), (263, 81939), (429, 50233), (573, 37609), (789, 27313), (2101, 10257), (2483, 8679), (2893, 7449), (3419, 6303)]