81211374

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2105

約数の個数: 48

約数和(自身を含む): 183768000

約数和(自身を除く): 102556626

約数列:

[1, 2, 3, 6, 9, 18, 37, 61, 74, 111, 122, 183, 222, 333, 366, 549, 666, 1098, 1999, 2257, 3998, 4514, 5997, 6771, 11994, 13542, 17991, 20313, 35982, 40626, 73963, 121939, 147926, 221889, 243878, 365817, 443778, 665667, 731634, 1097451, 1331334, 2194902, 4511743, 9023486, 13535229, 27070458, 40605687, 81211374]

約数ペア:

[(1, 81211374), (2, 40605687), (3, 27070458), (6, 13535229), (9, 9023486), (18, 4511743), (37, 2194902), (61, 1331334), (74, 1097451), (111, 731634), (122, 665667), (183, 443778), (222, 365817), (333, 243878), (366, 221889), (549, 147926), (666, 121939), (1098, 73963), (1999, 40626), (2257, 35982), (3998, 20313), (4514, 17991), (5997, 13542), (6771, 11994)]