30720753

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5479}}^1$

素因数の和:5581

約数の個数: 24

約数和(自身を含む): 51292800

約数和(自身を除く): 20572047

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 5479, 5607, 16437, 38353, 49311, 115059, 345177, 487631, 1462893, 3413417, 4388679, 10240251, 30720753]

約数ペア:

[(1, 30720753), (3, 10240251), (7, 4388679), (9, 3413417), (21, 1462893), (63, 487631), (89, 345177), (267, 115059), (623, 49311), (801, 38353), (1869, 16437), (5479, 5607)]