20849238

素因数分解:

$2^1\times 3^4\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 80

約数和(自身を含む): 49640976

約数和(自身を除く): 28791738

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 43, 54, 73, 81, 82, 86, 123, 129, 146, 162, 219, 246, 258, 369, 387, 438, 657, 738, 774, 1107, 1161, 1314, 1763, 1971, 2214, 2322, 2993, 3139, 3321, 3483, 3526, 3942, 5289, 5913, 5986, 6278, 6642, 6966, 8979, 9417, 10578, 11826, 15867, 17958, 18834, 26937, 28251, 31734, 47601, 53874, 56502, 80811, 84753, 95202, 128699, 142803, 161622, 169506, 242433, 254259, 257398, 285606, 386097, 484866, 508518, 772194, 1158291, 2316582, 3474873, 6949746, 10424619, 20849238]

約数ペア:

[(1, 20849238), (2, 10424619), (3, 6949746), (6, 3474873), (9, 2316582), (18, 1158291), (27, 772194), (41, 508518), (43, 484866), (54, 386097), (73, 285606), (81, 257398), (82, 254259), (86, 242433), (123, 169506), (129, 161622), (146, 142803), (162, 128699), (219, 95202), (246, 84753), (258, 80811), (369, 56502), (387, 53874), (438, 47601), (657, 31734), (738, 28251), (774, 26937), (1107, 18834), (1161, 17958), (1314, 15867), (1763, 11826), (1971, 10578), (2214, 9417), (2322, 8979), (2993, 6966), (3139, 6642), (3321, 6278), (3483, 5986), (3526, 5913), (3942, 5289)]