21909641

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{829}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 25099200

約数和(自身を除く): 3189559

約数列:

[1, 13, 19, 107, 247, 829, 1391, 2033, 10777, 15751, 26429, 88703, 204763, 1153139, 1685357, 21909641]

約数ペア:

[(1, 21909641), (13, 1685357), (19, 1153139), (107, 204763), (247, 88703), (829, 26429), (1391, 15751), (2033, 10777)]