21020604

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:527

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 34750020

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 93, 121, 124, 132, 186, 242, 341, 363, 372, 467, 484, 682, 726, 934, 1023, 1364, 1401, 1452, 1868, 2046, 2802, 3751, 4092, 5137, 5604, 7502, 10274, 11253, 14477, 15004, 15411, 20548, 22506, 28954, 30822, 43431, 45012, 56507, 57908, 61644, 86862, 113014, 159247, 169521, 173724, 226028, 318494, 339042, 477741, 636988, 678084, 955482, 1751717, 1910964, 3503434, 5255151, 7006868, 10510302, 21020604]

約数ペア:

[(1, 21020604), (2, 10510302), (3, 7006868), (4, 5255151), (6, 3503434), (11, 1910964), (12, 1751717), (22, 955482), (31, 678084), (33, 636988), (44, 477741), (62, 339042), (66, 318494), (93, 226028), (121, 173724), (124, 169521), (132, 159247), (186, 113014), (242, 86862), (341, 61644), (363, 57908), (372, 56507), (467, 45012), (484, 43431), (682, 30822), (726, 28954), (934, 22506), (1023, 20548), (1364, 15411), (1401, 15004), (1452, 14477), (1868, 11253), (2046, 10274), (2802, 7502), (3751, 5604), (4092, 5137)]