390642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 32

約数和(自身を含む): 912384

約数和(自身を除く): 521742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 131, 142, 213, 262, 393, 426, 497, 786, 917, 994, 1491, 1834, 2751, 2982, 5502, 9301, 18602, 27903, 55806, 65107, 130214, 195321, 390642]

約数ペア:

[(1, 390642), (2, 195321), (3, 130214), (6, 65107), (7, 55806), (14, 27903), (21, 18602), (42, 9301), (71, 5502), (131, 2982), (142, 2751), (213, 1834), (262, 1491), (393, 994), (426, 917), (497, 786)]