991305

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{1049}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 2016000

約数和(自身を除く): 1024695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 1049, 3147, 5245, 7343, 9441, 15735, 22029, 28323, 36715, 47205, 66087, 110145, 141615, 198261, 330435, 991305]

約数ペア:

[(1, 991305), (3, 330435), (5, 198261), (7, 141615), (9, 110145), (15, 66087), (21, 47205), (27, 36715), (35, 28323), (45, 22029), (63, 15735), (105, 9441), (135, 7343), (189, 5245), (315, 3147), (945, 1049)]