217931922

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2311}}^1$

素因数の和:2376

約数の個数: 72

約数和(自身を含む): 528023808

約数和(自身を除く): 310091886

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 169, 186, 234, 279, 338, 403, 507, 558, 806, 1014, 1209, 1521, 2311, 2418, 3042, 3627, 4622, 5239, 6933, 7254, 10478, 13866, 15717, 20799, 30043, 31434, 41598, 47151, 60086, 71641, 90129, 94302, 143282, 180258, 214923, 270387, 390559, 429846, 540774, 644769, 781118, 931333, 1171677, 1289538, 1862666, 2343354, 2793999, 3515031, 5587998, 7030062, 8381997, 12107329, 16763994, 24214658, 36321987, 72643974, 108965961, 217931922]

約数ペア:

[(1, 217931922), (2, 108965961), (3, 72643974), (6, 36321987), (9, 24214658), (13, 16763994), (18, 12107329), (26, 8381997), (31, 7030062), (39, 5587998), (62, 3515031), (78, 2793999), (93, 2343354), (117, 1862666), (169, 1289538), (186, 1171677), (234, 931333), (279, 781118), (338, 644769), (403, 540774), (507, 429846), (558, 390559), (806, 270387), (1014, 214923), (1209, 180258), (1521, 143282), (2311, 94302), (2418, 90129), (3042, 71641), (3627, 60086), (4622, 47151), (5239, 41598), (6933, 31434), (7254, 30043), (10478, 20799), (13866, 15717)]