18612808

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 36336960

約数和(自身を除く): 17724152

約数列:

[1, 2, 4, 8, 43, 61, 86, 122, 172, 244, 344, 488, 887, 1774, 2623, 3548, 5246, 7096, 10492, 20984, 38141, 54107, 76282, 108214, 152564, 216428, 305128, 432856, 2326601, 4653202, 9306404, 18612808]

約数ペア:

[(1, 18612808), (2, 9306404), (4, 4653202), (8, 2326601), (43, 432856), (61, 305128), (86, 216428), (122, 152564), (172, 108214), (244, 76282), (344, 54107), (488, 38141), (887, 20984), (1774, 10492), (2623, 7096), (3548, 5246)]