21412556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 21558484

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 97, 116, 173, 194, 319, 346, 388, 638, 692, 1067, 1276, 1903, 2134, 2813, 3806, 4268, 5017, 5626, 7612, 10034, 11252, 16781, 20068, 30943, 33562, 55187, 61886, 67124, 110374, 123772, 184591, 220748, 369182, 486649, 738364, 973298, 1946596, 5353139, 10706278, 21412556]

約数ペア:

[(1, 21412556), (2, 10706278), (4, 5353139), (11, 1946596), (22, 973298), (29, 738364), (44, 486649), (58, 369182), (97, 220748), (116, 184591), (173, 123772), (194, 110374), (319, 67124), (346, 61886), (388, 55187), (638, 33562), (692, 30943), (1067, 20068), (1276, 16781), (1903, 11252), (2134, 10034), (2813, 7612), (3806, 5626), (4268, 5017)]