21414679

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 6454505

約数列:

[1, 11, 13, 17, 23, 143, 187, 221, 253, 299, 383, 391, 2431, 3289, 4213, 4301, 4979, 5083, 6511, 8809, 54769, 55913, 71621, 84643, 96899, 114517, 149753, 931073, 1259687, 1647283, 1946789, 21414679]

約数ペア:

[(1, 21414679), (11, 1946789), (13, 1647283), (17, 1259687), (23, 931073), (143, 149753), (187, 114517), (221, 96899), (253, 84643), (299, 71621), (383, 55913), (391, 54769), (2431, 8809), (3289, 6511), (4213, 5083), (4301, 4979)]