21153551709

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{4493}}^1\times {\mathrm{36497}}^1$

素因数の和:41036

約数の個数: 16

約数和(自身を含む): 28867874112

約数和(自身を除く): 7714322403

約数列:

[1, 3, 43, 129, 4493, 13479, 36497, 109491, 193199, 579597, 1569371, 4708113, 163981021, 491943063, 7051183903, 21153551709]

約数ペア:

[(1, 21153551709), (3, 7051183903), (43, 491943063), (129, 163981021), (4493, 4708113), (13479, 1569371), (36497, 579597), (109491, 193199)]