201321981

素因数分解:

$3^2\times 7^1\times {\mathrm{1549}}^1\times {\mathrm{2063}}^1$

素因数の和:3625

約数の個数: 24

約数和(自身を含む): 332716800

約数和(自身を除く): 131394819

約数列:

[1, 3, 7, 9, 21, 63, 1549, 2063, 4647, 6189, 10843, 13941, 14441, 18567, 32529, 43323, 97587, 129969, 3195587, 9586761, 22369109, 28760283, 67107327, 201321981]

約数ペア:

[(1, 201321981), (3, 67107327), (7, 28760283), (9, 22369109), (21, 9586761), (63, 3195587), (1549, 129969), (2063, 97587), (4647, 43323), (6189, 32529), (10843, 18567), (13941, 14441)]