21997245

素因数分解:

$3^1\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1907}}^1$

素因数の和:2684

約数の個数: 16

約数和(自身を含む): 35259840

約数和(自身を除く): 13262595

約数列:

[1, 3, 5, 15, 769, 1907, 2307, 3845, 5721, 9535, 11535, 28605, 1466483, 4399449, 7332415, 21997245]

約数ペア:

[(1, 21997245), (3, 7332415), (5, 4399449), (15, 1466483), (769, 28605), (1907, 11535), (2307, 9535), (3845, 5721)]