81820998

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{1291}}^1$

素因数の和:1809

約数の個数: 48

約数和(自身を含む): 203164416

約数和(自身を除く): 121343418

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 503, 1006, 1291, 1509, 2582, 3018, 3521, 3873, 4527, 7042, 7746, 9037, 9054, 10563, 11619, 18074, 21126, 23238, 27111, 31689, 54222, 63378, 81333, 162666, 649373, 1298746, 1948119, 3896238, 4545611, 5844357, 9091222, 11688714, 13636833, 27273666, 40910499, 81820998]

約数ペア:

[(1, 81820998), (2, 40910499), (3, 27273666), (6, 13636833), (7, 11688714), (9, 9091222), (14, 5844357), (18, 4545611), (21, 3896238), (42, 1948119), (63, 1298746), (126, 649373), (503, 162666), (1006, 81333), (1291, 63378), (1509, 54222), (2582, 31689), (3018, 27111), (3521, 23238), (3873, 21126), (4527, 18074), (7042, 11619), (7746, 10563), (9037, 9054)]