19810368978

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2141}}^1\times {\mathrm{9461}}^1$

素因数の和:11770

約数の個数: 32

約数和(自身を含む): 39886644672

約数和(自身を除く): 20076275694

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 2141, 4282, 6423, 9461, 12846, 18922, 28383, 56766, 348983, 697966, 1046949, 1542143, 2093898, 3084286, 4626429, 9252858, 20256001, 40512002, 60768003, 121536006, 3301728163, 6603456326, 9905184489, 19810368978]

約数ペア:

[(1, 19810368978), (2, 9905184489), (3, 6603456326), (6, 3301728163), (163, 121536006), (326, 60768003), (489, 40512002), (978, 20256001), (2141, 9252858), (4282, 4626429), (6423, 3084286), (9461, 2093898), (12846, 1542143), (18922, 1046949), (28383, 697966), (56766, 348983)]