21879890081

素因数分解:

$7^3\times {\mathrm{7333}}^1\times {\mathrm{8699}}^1$

素因数の和:16053

約数の個数: 16

約数和(自身を含む): 25522320000

約数和(自身を除く): 3642429919

約数列:

[1, 7, 49, 343, 7333, 8699, 51331, 60893, 359317, 426251, 2515219, 2983757, 63789767, 446528369, 3125698583, 21879890081]

約数ペア:

[(1, 21879890081), (7, 3125698583), (49, 446528369), (343, 63789767), (7333, 2983757), (8699, 2515219), (51331, 426251), (60893, 359317)]