18140997

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^3\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 32

約数和(自身を含む): 29306880

約数和(自身を除く): 11165883

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 529, 1491, 1587, 1633, 3703, 4899, 11109, 11431, 12167, 34293, 36501, 37559, 85169, 112677, 255507, 262913, 788739, 863857, 2591571, 6046999, 18140997]

約数ペア:

[(1, 18140997), (3, 6046999), (7, 2591571), (21, 863857), (23, 788739), (69, 262913), (71, 255507), (161, 112677), (213, 85169), (483, 37559), (497, 36501), (529, 34293), (1491, 12167), (1587, 11431), (1633, 11109), (3703, 4899)]