213691556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6977}}^1$

素因数の和:7044

約数の個数: 48

約数和(自身を含む): 437660160

約数和(自身を除く): 223968604

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 988, 1178, 1612, 2356, 6977, 7657, 13954, 15314, 27908, 30628, 90701, 132563, 181402, 216287, 265126, 362804, 432574, 530252, 865148, 1723319, 2811731, 3446638, 4109453, 5623462, 6893276, 8218906, 11246924, 16437812, 53422889, 106845778, 213691556]

約数ペア:

[(1, 213691556), (2, 106845778), (4, 53422889), (13, 16437812), (19, 11246924), (26, 8218906), (31, 6893276), (38, 5623462), (52, 4109453), (62, 3446638), (76, 2811731), (124, 1723319), (247, 865148), (403, 530252), (494, 432574), (589, 362804), (806, 265126), (988, 216287), (1178, 181402), (1612, 132563), (2356, 90701), (6977, 30628), (7657, 27908), (13954, 15314)]