30280257

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1223}}^1$

素因数の和:1370

約数の個数: 32

約数和(自身を含む): 51701760

約数和(自身を除く): 21421503

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 917, 1179, 1223, 2751, 3537, 3669, 8253, 8561, 11007, 24759, 25683, 33021, 77049, 160213, 231147, 480639, 1121491, 1441917, 3364473, 4325751, 10093419, 30280257]

約数ペア:

[(1, 30280257), (3, 10093419), (7, 4325751), (9, 3364473), (21, 1441917), (27, 1121491), (63, 480639), (131, 231147), (189, 160213), (393, 77049), (917, 33021), (1179, 25683), (1223, 24759), (2751, 11007), (3537, 8561), (3669, 8253)]