20376867

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15907}}^1$

素因数の和:15978

約数の個数: 16

約数和(自身を含む): 31561472

約数和(自身を除く): 11184605

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15907, 47721, 111349, 334047, 970327, 2910981, 6792289, 20376867]

約数ペア:

[(1, 20376867), (3, 6792289), (7, 2910981), (21, 970327), (61, 334047), (183, 111349), (427, 47721), (1281, 15907)]