21238035

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15559}}^1$

素因数の和:15587

約数の個数: 32

約数和(自身を含む): 41825280

約数和(自身を除く): 20587245

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15559, 46677, 77795, 108913, 202267, 233385, 326739, 544565, 606801, 1011335, 1415869, 1633695, 3034005, 4247607, 7079345, 21238035]

約数ペア:

[(1, 21238035), (3, 7079345), (5, 4247607), (7, 3034005), (13, 1633695), (15, 1415869), (21, 1011335), (35, 606801), (39, 544565), (65, 326739), (91, 233385), (105, 202267), (195, 108913), (273, 77795), (455, 46677), (1365, 15559)]