18887738

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{3767}}^1$

素因数の和:3901

約数の個数: 16

約数和(自身を含む): 29842560

約数和(自身を除く): 10954822

約数列:

[1, 2, 23, 46, 109, 218, 2507, 3767, 5014, 7534, 86641, 173282, 410603, 821206, 9443869, 18887738]

約数ペア:

[(1, 18887738), (2, 9443869), (23, 821206), (46, 410603), (109, 173282), (218, 86641), (2507, 7534), (3767, 5014)]