18802199907

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1\times {\mathrm{1471}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 28007755776

約数和(自身を除く): 9205555869

約数列:

[1, 3, 9, 71, 83, 213, 241, 249, 639, 723, 747, 1471, 2169, 4413, 5893, 13239, 17111, 17679, 20003, 51333, 53037, 60009, 104441, 122093, 153999, 180027, 313323, 354511, 366279, 939969, 1063533, 1098837, 1420213, 3190599, 4260639, 8668603, 12781917, 25170281, 26005809, 29424413, 75510843, 78017427, 88273239, 226532529, 264819717, 2089133323, 6267399969, 18802199907]

約数ペア:

[(1, 18802199907), (3, 6267399969), (9, 2089133323), (71, 264819717), (83, 226532529), (213, 88273239), (241, 78017427), (249, 75510843), (639, 29424413), (723, 26005809), (747, 25170281), (1471, 12781917), (2169, 8668603), (4413, 4260639), (5893, 3190599), (13239, 1420213), (17111, 1098837), (17679, 1063533), (20003, 939969), (51333, 366279), (53037, 354511), (60009, 313323), (104441, 180027), (122093, 153999)]