19662008

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{937}}^1$

素因数の和:1047

約数の個数: 32

約数和(自身を含む): 38382960

約数和(自身を除く): 18720952

約数列:

[1, 2, 4, 8, 43, 61, 86, 122, 172, 244, 344, 488, 937, 1874, 2623, 3748, 5246, 7496, 10492, 20984, 40291, 57157, 80582, 114314, 161164, 228628, 322328, 457256, 2457751, 4915502, 9831004, 19662008]

約数ペア:

[(1, 19662008), (2, 9831004), (4, 4915502), (8, 2457751), (43, 457256), (61, 322328), (86, 228628), (122, 161164), (172, 114314), (244, 80582), (344, 57157), (488, 40291), (937, 20984), (1874, 10492), (2623, 7496), (3748, 5246)]