21329590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112261}}^1$

素因数の和:112287

約数の個数: 16

約数和(自身を含む): 40414320

約数和(自身を除く): 19084730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112261, 224522, 561305, 1122610, 2132959, 4265918, 10664795, 21329590]

約数ペア:

[(1, 21329590), (2, 10664795), (5, 4265918), (10, 2132959), (19, 1122610), (38, 561305), (95, 224522), (190, 112261)]