21808164

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{259621}}^1$

素因数の和:259635

約数の個数: 24

約数和(自身を含む): 58155328

約数和(自身を除く): 36347164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 259621, 519242, 778863, 1038484, 1557726, 1817347, 3115452, 3634694, 5452041, 7269388, 10904082, 21808164]

約数ペア:

[(1, 21808164), (2, 10904082), (3, 7269388), (4, 5452041), (6, 3634694), (7, 3115452), (12, 1817347), (14, 1557726), (21, 1038484), (28, 778863), (42, 519242), (84, 259621)]