21611247

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 12856593

約数列:

[1, 3, 7, 21, 31, 89, 93, 217, 267, 373, 623, 651, 1119, 1869, 2611, 2759, 7833, 8277, 11563, 19313, 33197, 34689, 57939, 80941, 99591, 232379, 242823, 697137, 1029107, 3087321, 7203749, 21611247]

約数ペア:

[(1, 21611247), (3, 7203749), (7, 3087321), (21, 1029107), (31, 697137), (89, 242823), (93, 232379), (217, 99591), (267, 80941), (373, 57939), (623, 34689), (651, 33197), (1119, 19313), (1869, 11563), (2611, 8277), (2759, 7833)]