21046077

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:270

約数の個数: 36

約数和(自身を含む): 33486804

約数和(自身を除く): 12440727

約数列:

[1, 3, 9, 13, 39, 101, 117, 137, 169, 303, 411, 507, 909, 1233, 1313, 1521, 1781, 3939, 5343, 11817, 13837, 16029, 17069, 23153, 41511, 51207, 69459, 124533, 153621, 179881, 208377, 539643, 1618929, 2338453, 7015359, 21046077]

約数ペア:

[(1, 21046077), (3, 7015359), (9, 2338453), (13, 1618929), (39, 539643), (101, 208377), (117, 179881), (137, 153621), (169, 124533), (303, 69459), (411, 51207), (507, 41511), (909, 23153), (1233, 17069), (1313, 16029), (1521, 13837), (1781, 11817), (3939, 5343)]