21861411

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 12733149

約数列:

[1, 3, 11, 13, 33, 39, 131, 143, 389, 393, 429, 1167, 1441, 1703, 4279, 4323, 5057, 5109, 12837, 15171, 18733, 50959, 55627, 56199, 152877, 166881, 560549, 662467, 1681647, 1987401, 7287137, 21861411]

約数ペア:

[(1, 21861411), (3, 7287137), (11, 1987401), (13, 1681647), (33, 662467), (39, 560549), (131, 166881), (143, 152877), (389, 56199), (393, 55627), (429, 50959), (1167, 18733), (1441, 15171), (1703, 12837), (4279, 5109), (4323, 5057)]