21949866

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 80

約数和(自身を含む): 52899264

約数和(自身を除く): 30949398

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 43, 46, 54, 69, 81, 86, 129, 137, 138, 162, 207, 258, 274, 387, 411, 414, 621, 774, 822, 989, 1161, 1233, 1242, 1863, 1978, 2322, 2466, 2967, 3151, 3483, 3699, 3726, 5891, 5934, 6302, 6966, 7398, 8901, 9453, 11097, 11782, 17673, 17802, 18906, 22194, 26703, 28359, 35346, 53019, 53406, 56718, 80109, 85077, 106038, 135493, 159057, 160218, 170154, 255231, 270986, 318114, 406479, 477171, 510462, 812958, 954342, 1219437, 2438874, 3658311, 7316622, 10974933, 21949866]

約数ペア:

[(1, 21949866), (2, 10974933), (3, 7316622), (6, 3658311), (9, 2438874), (18, 1219437), (23, 954342), (27, 812958), (43, 510462), (46, 477171), (54, 406479), (69, 318114), (81, 270986), (86, 255231), (129, 170154), (137, 160218), (138, 159057), (162, 135493), (207, 106038), (258, 85077), (274, 80109), (387, 56718), (411, 53406), (414, 53019), (621, 35346), (774, 28359), (822, 26703), (989, 22194), (1161, 18906), (1233, 17802), (1242, 17673), (1863, 11782), (1978, 11097), (2322, 9453), (2466, 8901), (2967, 7398), (3151, 6966), (3483, 6302), (3699, 5934), (3726, 5891)]