388206567

素因数分解:

$3^3\times 7^2\times {\mathrm{139}}^1\times {\mathrm{2111}}^1$

素因数の和:2273

約数の個数: 48

約数和(自身を含む): 674150400

約数和(自身を除く): 285943833

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 139, 147, 189, 417, 441, 973, 1251, 1323, 2111, 2919, 3753, 6333, 6811, 8757, 14777, 18999, 20433, 26271, 44331, 56997, 61299, 103439, 132993, 183897, 293429, 310317, 398979, 880287, 930951, 2054003, 2640861, 2792853, 6162009, 7922583, 14378021, 18486027, 43134063, 55458081, 129402189, 388206567]

約数ペア:

[(1, 388206567), (3, 129402189), (7, 55458081), (9, 43134063), (21, 18486027), (27, 14378021), (49, 7922583), (63, 6162009), (139, 2792853), (147, 2640861), (189, 2054003), (417, 930951), (441, 880287), (973, 398979), (1251, 310317), (1323, 293429), (2111, 183897), (2919, 132993), (3753, 103439), (6333, 61299), (6811, 56997), (8757, 44331), (14777, 26271), (18999, 20433)]