861318

素因数分解:

$2^1\times 3^2\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:556

約数の個数: 24

約数和(自身を含む): 1887600

約数和(自身を除く): 1026282

約数列:

[1, 2, 3, 6, 9, 18, 109, 218, 327, 439, 654, 878, 981, 1317, 1962, 2634, 3951, 7902, 47851, 95702, 143553, 287106, 430659, 861318]

約数ペア:

[(1, 861318), (2, 430659), (3, 287106), (6, 143553), (9, 95702), (18, 47851), (109, 7902), (218, 3951), (327, 2634), (439, 1962), (654, 1317), (878, 981)]