71561427

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 111681024

約数和(自身を除く): 40119597

約数列:

[1, 3, 7, 21, 67, 181, 201, 281, 469, 543, 843, 1267, 1407, 1967, 3801, 5901, 12127, 18827, 36381, 50861, 56481, 84889, 131789, 152583, 254667, 356027, 395367, 1068081, 3407687, 10223061, 23853809, 71561427]

約数ペア:

[(1, 71561427), (3, 23853809), (7, 10223061), (21, 3407687), (67, 1068081), (181, 395367), (201, 356027), (281, 254667), (469, 152583), (543, 131789), (843, 84889), (1267, 56481), (1407, 50861), (1967, 36381), (3801, 18827), (5901, 12127)]