399610431

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{12979}}^1$

素因数の和:13307

約数の個数: 24

約数和(自身を含む): 631762560

約数和(自身を除く): 232152129

約数列:

[1, 3, 9, 11, 33, 99, 311, 933, 2799, 3421, 10263, 12979, 30789, 38937, 116811, 142769, 428307, 1284921, 4036469, 12109407, 36328221, 44401159, 133203477, 399610431]

約数ペア:

[(1, 399610431), (3, 133203477), (9, 44401159), (11, 36328221), (33, 12109407), (99, 4036469), (311, 1284921), (933, 428307), (2799, 142769), (3421, 116811), (10263, 38937), (12979, 30789)]