21621204

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 38919276

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 71, 99, 132, 142, 198, 213, 284, 396, 426, 639, 769, 781, 852, 1278, 1538, 1562, 2307, 2343, 2556, 3076, 3124, 4614, 4686, 6921, 7029, 8459, 9228, 9372, 13842, 14058, 16918, 25377, 27684, 28116, 33836, 50754, 54599, 76131, 101508, 109198, 152262, 163797, 218396, 304524, 327594, 491391, 600589, 655188, 982782, 1201178, 1801767, 1965564, 2402356, 3603534, 5405301, 7207068, 10810602, 21621204]

約数ペア:

[(1, 21621204), (2, 10810602), (3, 7207068), (4, 5405301), (6, 3603534), (9, 2402356), (11, 1965564), (12, 1801767), (18, 1201178), (22, 982782), (33, 655188), (36, 600589), (44, 491391), (66, 327594), (71, 304524), (99, 218396), (132, 163797), (142, 152262), (198, 109198), (213, 101508), (284, 76131), (396, 54599), (426, 50754), (639, 33836), (769, 28116), (781, 27684), (852, 25377), (1278, 16918), (1538, 14058), (1562, 13842), (2307, 9372), (2343, 9228), (2556, 8459), (3076, 7029), (3124, 6921), (4614, 4686)]