399186

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:406

約数の個数: 24

約数和(自身を含む): 880464

約数和(自身を除く): 481278

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 331, 402, 603, 662, 993, 1206, 1986, 2979, 5958, 22177, 44354, 66531, 133062, 199593, 399186]

約数ペア:

[(1, 399186), (2, 199593), (3, 133062), (6, 66531), (9, 44354), (18, 22177), (67, 5958), (134, 2979), (201, 1986), (331, 1206), (402, 993), (603, 662)]