20963349

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 13893291

約数列:

[1, 3, 9, 11, 33, 37, 59, 97, 99, 111, 177, 291, 333, 407, 531, 649, 873, 1067, 1221, 1947, 2183, 3201, 3589, 3663, 5723, 5841, 6549, 9603, 10767, 17169, 19647, 24013, 32301, 39479, 51507, 62953, 72039, 118437, 188859, 211751, 216117, 355311, 566577, 635253, 1905759, 2329261, 6987783, 20963349]

約数ペア:

[(1, 20963349), (3, 6987783), (9, 2329261), (11, 1905759), (33, 635253), (37, 566577), (59, 355311), (97, 216117), (99, 211751), (111, 188859), (177, 118437), (291, 72039), (333, 62953), (407, 51507), (531, 39479), (649, 32301), (873, 24013), (1067, 19647), (1221, 17169), (1947, 10767), (2183, 9603), (3201, 6549), (3589, 5841), (3663, 5723)]