21392604

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 57832320

約数和(自身を除く): 36439716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 31, 36, 58, 62, 87, 93, 116, 124, 174, 186, 261, 279, 348, 372, 522, 558, 661, 899, 1044, 1116, 1322, 1798, 1983, 2644, 2697, 3596, 3966, 5394, 5949, 7932, 8091, 10788, 11898, 16182, 19169, 20491, 23796, 32364, 38338, 40982, 57507, 61473, 76676, 81964, 115014, 122946, 172521, 184419, 230028, 245892, 345042, 368838, 594239, 690084, 737676, 1188478, 1782717, 2376956, 3565434, 5348151, 7130868, 10696302, 21392604]

約数ペア:

[(1, 21392604), (2, 10696302), (3, 7130868), (4, 5348151), (6, 3565434), (9, 2376956), (12, 1782717), (18, 1188478), (29, 737676), (31, 690084), (36, 594239), (58, 368838), (62, 345042), (87, 245892), (93, 230028), (116, 184419), (124, 172521), (174, 122946), (186, 115014), (261, 81964), (279, 76676), (348, 61473), (372, 57507), (522, 40982), (558, 38338), (661, 32364), (899, 23796), (1044, 20491), (1116, 19169), (1322, 16182), (1798, 11898), (1983, 10788), (2644, 8091), (2697, 7932), (3596, 5949), (3966, 5394)]