81661886

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^2$

素因数の和:540

約数の個数: 24

約数和(自身を含む): 132976440

約数和(自身を除く): 51314554

約数列:

[1, 2, 19, 37, 38, 74, 241, 482, 703, 1406, 4579, 8917, 9158, 17834, 58081, 116162, 169423, 338846, 1103539, 2148997, 2207078, 4297994, 40830943, 81661886]

約数ペア:

[(1, 81661886), (2, 40830943), (19, 4297994), (37, 2207078), (38, 2148997), (74, 1103539), (241, 338846), (482, 169423), (703, 116162), (1406, 58081), (4579, 17834), (8917, 9158)]