18640695

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 31601664

約数和(自身を除く): 12960969

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 213, 345, 355, 761, 1065, 1633, 2283, 3805, 4899, 8165, 11415, 17503, 24495, 52509, 54031, 87515, 162093, 262545, 270155, 810465, 1242713, 3728139, 6213565, 18640695]

約数ペア:

[(1, 18640695), (3, 6213565), (5, 3728139), (15, 1242713), (23, 810465), (69, 270155), (71, 262545), (115, 162093), (213, 87515), (345, 54031), (355, 52509), (761, 24495), (1065, 17503), (1633, 11415), (2283, 8165), (3805, 4899)]