21381306

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{154937}}^1$

素因数の和:154965

約数の個数: 16

約数和(自身を含む): 44622144

約数和(自身を除く): 23240838

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 154937, 309874, 464811, 929622, 3563551, 7127102, 10690653, 21381306]

約数ペア:

[(1, 21381306), (2, 10690653), (3, 7127102), (6, 3563551), (23, 929622), (46, 464811), (69, 309874), (138, 154937)]