987821757

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{65449}}^1$

素因数の和:65514

約数の個数: 32

約数和(自身を含む): 1612688000

約数和(自身を除く): 624866243

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 15093, 65449, 196347, 589041, 850837, 1767123, 2552511, 2814307, 7657533, 8442921, 22972599, 25328763, 36585991, 75986289, 109757973, 329273919, 987821757]

約数ペア:

[(1, 987821757), (3, 329273919), (9, 109757973), (13, 75986289), (27, 36585991), (39, 25328763), (43, 22972599), (117, 8442921), (129, 7657533), (351, 2814307), (387, 2552511), (559, 1767123), (1161, 850837), (1677, 589041), (5031, 196347), (15093, 65449)]