21064252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15443}}^1$

素因数の和:15489

約数の個数: 24

約数和(自身を含む): 41513472

約数和(自身を除く): 20449220

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15443, 30886, 61772, 169873, 339746, 478733, 679492, 957466, 1914932, 5266063, 10532126, 21064252]

約数ペア:

[(1, 21064252), (2, 10532126), (4, 5266063), (11, 1914932), (22, 957466), (31, 679492), (44, 478733), (62, 339746), (124, 169873), (341, 61772), (682, 30886), (1364, 15443)]