2163945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 4071168

約数和(自身を除く): 1907223

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 557, 777, 1295, 1671, 2785, 3885, 3899, 8355, 11697, 19495, 20609, 58485, 61827, 103045, 144263, 309135, 432789, 721315, 2163945]

約数ペア:

[(1, 2163945), (3, 721315), (5, 432789), (7, 309135), (15, 144263), (21, 103045), (35, 61827), (37, 58485), (105, 20609), (111, 19495), (185, 11697), (259, 8355), (555, 3899), (557, 3885), (777, 2785), (1295, 1671)]