15954978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 36191232

約数和(自身を除く): 20236254

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 67, 71, 78, 86, 129, 134, 142, 201, 213, 258, 402, 426, 559, 871, 923, 1118, 1677, 1742, 1846, 2613, 2769, 2881, 3053, 3354, 4757, 5226, 5538, 5762, 6106, 8643, 9159, 9514, 14271, 17286, 18318, 28542, 37453, 39689, 61841, 74906, 79378, 112359, 119067, 123682, 185523, 204551, 224718, 238134, 371046, 409102, 613653, 1227306, 2659163, 5318326, 7977489, 15954978]

約数ペア:

[(1, 15954978), (2, 7977489), (3, 5318326), (6, 2659163), (13, 1227306), (26, 613653), (39, 409102), (43, 371046), (67, 238134), (71, 224718), (78, 204551), (86, 185523), (129, 123682), (134, 119067), (142, 112359), (201, 79378), (213, 74906), (258, 61841), (402, 39689), (426, 37453), (559, 28542), (871, 18318), (923, 17286), (1118, 14271), (1677, 9514), (1742, 9159), (1846, 8643), (2613, 6106), (2769, 5762), (2881, 5538), (3053, 5226), (3354, 4757)]