20007513

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:978

約数の個数: 32

約数和(自身を含む): 31961600

約数和(自身を除く): 11954087

約数列:

[1, 3, 9, 19, 27, 43, 57, 129, 171, 387, 513, 817, 907, 1161, 2451, 2721, 7353, 8163, 17233, 22059, 24489, 39001, 51699, 117003, 155097, 351009, 465291, 741019, 1053027, 2223057, 6669171, 20007513]

約数ペア:

[(1, 20007513), (3, 6669171), (9, 2223057), (19, 1053027), (27, 741019), (43, 465291), (57, 351009), (129, 155097), (171, 117003), (387, 51699), (513, 39001), (817, 24489), (907, 22059), (1161, 17233), (2451, 8163), (2721, 7353)]