18938337011

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^3\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2144

約数の個数: 32

約数和(自身を含む): 21914219520

約数和(自身を除く): 2975882509

約数列:

[1, 11, 23, 71, 253, 529, 781, 1633, 1993, 5819, 12167, 17963, 21923, 37559, 45839, 133837, 141503, 413149, 504229, 863857, 1054297, 1556533, 3254569, 9502427, 11597267, 24248831, 35800259, 74855087, 266737141, 823405957, 1721667001, 18938337011]

約数ペア:

[(1, 18938337011), (11, 1721667001), (23, 823405957), (71, 266737141), (253, 74855087), (529, 35800259), (781, 24248831), (1633, 11597267), (1993, 9502427), (5819, 3254569), (12167, 1556533), (17963, 1054297), (21923, 863857), (37559, 504229), (45839, 413149), (133837, 141503)]