19954008

素因数分解:

$2^3\times 3^2\times {\mathrm{373}}^1\times {\mathrm{743}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 54259920

約数和(自身を除く): 34305912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 373, 743, 746, 1119, 1486, 1492, 2229, 2238, 2972, 2984, 3357, 4458, 4476, 5944, 6687, 6714, 8916, 8952, 13374, 13428, 17832, 26748, 26856, 53496, 277139, 554278, 831417, 1108556, 1662834, 2217112, 2494251, 3325668, 4988502, 6651336, 9977004, 19954008]

約数ペア:

[(1, 19954008), (2, 9977004), (3, 6651336), (4, 4988502), (6, 3325668), (8, 2494251), (9, 2217112), (12, 1662834), (18, 1108556), (24, 831417), (36, 554278), (72, 277139), (373, 53496), (743, 26856), (746, 26748), (1119, 17832), (1486, 13428), (1492, 13374), (2229, 8952), (2238, 8916), (2972, 6714), (2984, 6687), (3357, 5944), (4458, 4476)]