81230331

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4441}}^1$

素因数の和:4531

約数の個数: 32

約数和(自身を含む): 135321088

約数和(自身を除く): 54090757

約数列:

[1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1407, 2613, 4441, 6097, 13323, 18291, 31087, 57733, 93261, 173199, 297547, 404131, 892641, 1212393, 2082829, 3868111, 6248487, 11604333, 27076777, 81230331]

約数ペア:

[(1, 81230331), (3, 27076777), (7, 11604333), (13, 6248487), (21, 3868111), (39, 2082829), (67, 1212393), (91, 892641), (201, 404131), (273, 297547), (469, 173199), (871, 93261), (1407, 57733), (2613, 31087), (4441, 18291), (6097, 13323)]