72807091

素因数分解:

$7^2\times {\mathrm{67}}^2\times {\mathrm{331}}^1$

素因数の和:479

約数の個数: 18

約数和(自身を含む): 86236668

約数和(自身を除く): 13429577

約数列:

[1, 7, 49, 67, 331, 469, 2317, 3283, 4489, 16219, 22177, 31423, 155239, 219961, 1086673, 1485859, 10401013, 72807091]

約数ペア:

[(1, 72807091), (7, 10401013), (49, 1485859), (67, 1086673), (331, 219961), (469, 155239), (2317, 31423), (3283, 22177), (4489, 16219)]