18885208

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{521}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 37208160

約数和(自身を除く): 18322952

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 197, 394, 521, 788, 1042, 1576, 2084, 4168, 4531, 9062, 11983, 18124, 23966, 36248, 47932, 95864, 102637, 205274, 410548, 821096, 2360651, 4721302, 9442604, 18885208]

約数ペア:

[(1, 18885208), (2, 9442604), (4, 4721302), (8, 2360651), (23, 821096), (46, 410548), (92, 205274), (184, 102637), (197, 95864), (394, 47932), (521, 36248), (788, 23966), (1042, 18124), (1576, 11983), (2084, 9062), (4168, 4531)]