28708785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{91139}}^1$

素因数の和:91157

約数の個数: 24

約数和(自身を含む): 56871360

約数和(自身を除く): 28162575

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 91139, 273417, 455695, 637973, 820251, 1367085, 1913919, 3189865, 4101255, 5741757, 9569595, 28708785]

約数ペア:

[(1, 28708785), (3, 9569595), (5, 5741757), (7, 4101255), (9, 3189865), (15, 1913919), (21, 1367085), (35, 820251), (45, 637973), (63, 455695), (105, 273417), (315, 91139)]