31270617

素因数分解:

$3^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 53921472

約数和(自身を除く): 22650855

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 131, 189, 393, 421, 567, 917, 1179, 1263, 2751, 2947, 3537, 3789, 8253, 8841, 10611, 11367, 24759, 26523, 34101, 55151, 74277, 79569, 165453, 238707, 386057, 496359, 1158171, 1489077, 3474513, 4467231, 10423539, 31270617]

約数ペア:

[(1, 31270617), (3, 10423539), (7, 4467231), (9, 3474513), (21, 1489077), (27, 1158171), (63, 496359), (81, 386057), (131, 238707), (189, 165453), (393, 79569), (421, 74277), (567, 55151), (917, 34101), (1179, 26523), (1263, 24759), (2751, 11367), (2947, 10611), (3537, 8841), (3789, 8253)]