20416185

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3517}}^1$

素因数の和:3574

約数の個数: 32

約数和(自身を含む): 37150080

約数和(自身を除く): 16733895

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3517, 5805, 10551, 17585, 31653, 52755, 94959, 151231, 158265, 453693, 474795, 756155, 1361079, 2268465, 4083237, 6805395, 20416185]

約数ペア:

[(1, 20416185), (3, 6805395), (5, 4083237), (9, 2268465), (15, 1361079), (27, 756155), (43, 474795), (45, 453693), (129, 158265), (135, 151231), (215, 94959), (387, 52755), (645, 31653), (1161, 17585), (1935, 10551), (3517, 5805)]