20493972

素因数分解:

$2^2\times 3^4\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1530

約数の個数: 60

約数和(自身を含む): 54858496

約数和(自身を除く): 34364524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 81, 86, 108, 129, 162, 172, 258, 324, 387, 516, 774, 1161, 1471, 1548, 2322, 2942, 3483, 4413, 4644, 5884, 6966, 8826, 13239, 13932, 17652, 26478, 39717, 52956, 63253, 79434, 119151, 126506, 158868, 189759, 238302, 253012, 379518, 476604, 569277, 759036, 1138554, 1707831, 2277108, 3415662, 5123493, 6831324, 10246986, 20493972]

約数ペア:

[(1, 20493972), (2, 10246986), (3, 6831324), (4, 5123493), (6, 3415662), (9, 2277108), (12, 1707831), (18, 1138554), (27, 759036), (36, 569277), (43, 476604), (54, 379518), (81, 253012), (86, 238302), (108, 189759), (129, 158868), (162, 126506), (172, 119151), (258, 79434), (324, 63253), (387, 52956), (516, 39717), (774, 26478), (1161, 17652), (1471, 13932), (1548, 13239), (2322, 8826), (2942, 6966), (3483, 5884), (4413, 4644)]