20831652

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 55648320

約数和(自身を除く): 34816668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 139, 181, 207, 276, 278, 362, 414, 417, 543, 556, 724, 828, 834, 1086, 1251, 1629, 1668, 2172, 2502, 3197, 3258, 4163, 5004, 6394, 6516, 8326, 9591, 12489, 12788, 16652, 19182, 24978, 25159, 28773, 37467, 38364, 49956, 50318, 57546, 74934, 75477, 100636, 115092, 149868, 150954, 226431, 301908, 452862, 578657, 905724, 1157314, 1735971, 2314628, 3471942, 5207913, 6943884, 10415826, 20831652]

約数ペア:

[(1, 20831652), (2, 10415826), (3, 6943884), (4, 5207913), (6, 3471942), (9, 2314628), (12, 1735971), (18, 1157314), (23, 905724), (36, 578657), (46, 452862), (69, 301908), (92, 226431), (138, 150954), (139, 149868), (181, 115092), (207, 100636), (276, 75477), (278, 74934), (362, 57546), (414, 50318), (417, 49956), (543, 38364), (556, 37467), (724, 28773), (828, 25159), (834, 24978), (1086, 19182), (1251, 16652), (1629, 12788), (1668, 12489), (2172, 9591), (2502, 8326), (3197, 6516), (3258, 6394), (4163, 5004)]