1991106

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 4752384

約数和(自身を除く): 2761278

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 67, 78, 117, 127, 134, 201, 234, 254, 381, 402, 603, 762, 871, 1143, 1206, 1651, 1742, 2286, 2613, 3302, 4953, 5226, 7839, 8509, 9906, 14859, 15678, 17018, 25527, 29718, 51054, 76581, 110617, 153162, 221234, 331851, 663702, 995553, 1991106]

約数ペア:

[(1, 1991106), (2, 995553), (3, 663702), (6, 331851), (9, 221234), (13, 153162), (18, 110617), (26, 76581), (39, 51054), (67, 29718), (78, 25527), (117, 17018), (127, 15678), (134, 14859), (201, 9906), (234, 8509), (254, 7839), (381, 5226), (402, 4953), (603, 3302), (762, 2613), (871, 2286), (1143, 1742), (1206, 1651)]