198156681

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1374

約数の個数: 48

約数和(自身を含む): 321984000

約数和(自身を除く): 123827319

約数列:

[1, 3, 9, 19, 29, 31, 57, 87, 93, 171, 261, 279, 551, 589, 899, 1289, 1653, 1767, 2697, 3867, 4959, 5301, 8091, 11601, 17081, 24491, 37381, 39959, 51243, 73473, 112143, 119877, 153729, 220419, 336429, 359631, 710239, 759221, 1158811, 2130717, 2277663, 3476433, 6392151, 6832989, 10429299, 22017409, 66052227, 198156681]

約数ペア:

[(1, 198156681), (3, 66052227), (9, 22017409), (19, 10429299), (29, 6832989), (31, 6392151), (57, 3476433), (87, 2277663), (93, 2130717), (171, 1158811), (261, 759221), (279, 710239), (551, 359631), (589, 336429), (899, 220419), (1289, 153729), (1653, 119877), (1767, 112143), (2697, 73473), (3867, 51243), (4959, 39959), (5301, 37381), (8091, 24491), (11601, 17081)]