2156543181

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{18637}}^1$

素因数の和:18722

約数の個数: 48

約数和(自身を含む): 3582074496

約数和(自身を除く): 1425531315

約数列:

[1, 3, 9, 13, 23, 39, 43, 69, 117, 129, 207, 299, 387, 559, 897, 989, 1677, 2691, 2967, 5031, 8901, 12857, 18637, 38571, 55911, 115713, 167733, 242281, 428651, 726843, 801391, 1285953, 2180529, 2404173, 3857859, 5572463, 7212519, 10418083, 16717389, 18431993, 31254249, 50152167, 55295979, 93762747, 165887937, 239615909, 718847727, 2156543181]

約数ペア:

[(1, 2156543181), (3, 718847727), (9, 239615909), (13, 165887937), (23, 93762747), (39, 55295979), (43, 50152167), (69, 31254249), (117, 18431993), (129, 16717389), (207, 10418083), (299, 7212519), (387, 5572463), (559, 3857859), (897, 2404173), (989, 2180529), (1677, 1285953), (2691, 801391), (2967, 726843), (5031, 428651), (8901, 242281), (12857, 167733), (18637, 115713), (38571, 55911)]