81239378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{41491}}^1$

素因数の和:41593

約数の個数: 16

約数和(自身を含む): 134434080

約数和(自身を除く): 53194702

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 41491, 82982, 456401, 912802, 3692699, 7385398, 40619689, 81239378]

約数ペア:

[(1, 81239378), (2, 40619689), (11, 7385398), (22, 3692699), (89, 912802), (178, 456401), (979, 82982), (1958, 41491)]