128993039

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 159667200

約数和(自身を除く): 30674161

約数列:

[1, 7, 23, 49, 83, 161, 197, 343, 581, 1127, 1379, 1909, 4067, 4531, 7889, 9653, 13363, 16351, 28469, 31717, 67571, 93541, 114457, 222019, 376073, 654787, 801199, 1554133, 2632511, 5608393, 18427577, 128993039]

約数ペア:

[(1, 128993039), (7, 18427577), (23, 5608393), (49, 2632511), (83, 1554133), (161, 801199), (197, 654787), (343, 376073), (581, 222019), (1127, 114457), (1379, 93541), (1909, 67571), (4067, 31717), (4531, 28469), (7889, 16351), (9653, 13363)]