28785939

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{8111}}^1$

素因数の和:8147

約数の個数: 24

約数和(自身を含む): 47503872

約数和(自身を除く): 18717933

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 8111, 24333, 56777, 105443, 170331, 316329, 738101, 1370759, 2214303, 4112277, 9595313, 28785939]

約数ペア:

[(1, 28785939), (3, 9595313), (7, 4112277), (13, 2214303), (21, 1370759), (39, 738101), (91, 316329), (169, 170331), (273, 105443), (507, 56777), (1183, 24333), (3549, 8111)]