81581388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{971207}}^1$

素因数の和:971221

約数の個数: 24

約数和(自身を含む): 217550592

約数和(自身を除く): 135969204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 971207, 1942414, 2913621, 3884828, 5827242, 6798449, 11654484, 13596898, 20395347, 27193796, 40790694, 81581388]

約数ペア:

[(1, 81581388), (2, 40790694), (3, 27193796), (4, 20395347), (6, 13596898), (7, 11654484), (12, 6798449), (14, 5827242), (21, 3884828), (28, 2913621), (42, 1942414), (84, 971207)]