21899079

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{7307}}^1$

素因数の和:7356

約数の個数: 20

約数和(自身を含む): 33602184

約数和(自身を除く): 11703105

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 7307, 21921, 65763, 197289, 270359, 591867, 811077, 2433231, 7299693, 21899079]

約数ペア:

[(1, 21899079), (3, 7299693), (9, 2433231), (27, 811077), (37, 591867), (81, 270359), (111, 197289), (333, 65763), (999, 21921), (2997, 7307)]