21898190

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{75511}}^1$

素因数の和:75547

約数の個数: 16

約数和(自身を含む): 40776480

約数和(自身を除く): 18878290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 75511, 151022, 377555, 755110, 2189819, 4379638, 10949095, 21898190]

約数ペア:

[(1, 21898190), (2, 10949095), (5, 4379638), (10, 2189819), (29, 755110), (58, 377555), (145, 151022), (290, 75511)]