991809

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 1805076

約数和(自身を除く): 813267

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 173, 273, 441, 519, 637, 819, 1211, 1557, 1911, 2249, 3633, 5733, 6747, 8477, 10899, 15743, 20241, 25431, 47229, 76293, 110201, 141687, 330603, 991809]

約数ペア:

[(1, 991809), (3, 330603), (7, 141687), (9, 110201), (13, 76293), (21, 47229), (39, 25431), (49, 20241), (63, 15743), (91, 10899), (117, 8477), (147, 6747), (173, 5733), (273, 3633), (441, 2249), (519, 1911), (637, 1557), (819, 1211)]