81993359

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1\times {\mathrm{619}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 95232000

約数和(自身を除く): 13238641

約数列:

[1, 7, 127, 149, 619, 889, 1043, 4333, 18923, 78613, 92231, 132461, 550291, 645617, 11713337, 81993359]

約数ペア:

[(1, 81993359), (7, 11713337), (127, 645617), (149, 550291), (619, 132461), (889, 92231), (1043, 78613), (4333, 18923)]