20945419408

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{3343}}^1\times {\mathrm{9551}}^1$

素因数の和:12943

約数の個数: 40

約数和(自身を含む): 41588338176

約数和(自身を除く): 20642918768

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 3343, 6686, 9551, 13372, 19102, 26744, 38204, 53488, 76408, 137063, 152816, 274126, 391591, 548252, 783182, 1096504, 1566364, 2193008, 3132728, 6265456, 31928993, 63857986, 127715972, 255431944, 510863888, 1309088713, 2618177426, 5236354852, 10472709704, 20945419408]

約数ペア:

[(1, 20945419408), (2, 10472709704), (4, 5236354852), (8, 2618177426), (16, 1309088713), (41, 510863888), (82, 255431944), (164, 127715972), (328, 63857986), (656, 31928993), (3343, 6265456), (6686, 3132728), (9551, 2193008), (13372, 1566364), (19102, 1096504), (26744, 783182), (38204, 548252), (53488, 391591), (76408, 274126), (137063, 152816)]