28405398

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1223}}^1$

素因数の和:1321

約数の個数: 48

約数和(自身を含む): 66977280

約数和(自身を除く): 38571882

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 79, 98, 147, 158, 237, 294, 474, 553, 1106, 1223, 1659, 2446, 3318, 3669, 3871, 7338, 7742, 8561, 11613, 17122, 23226, 25683, 51366, 59927, 96617, 119854, 179781, 193234, 289851, 359562, 579702, 676319, 1352638, 2028957, 4057914, 4734233, 9468466, 14202699, 28405398]

約数ペア:

[(1, 28405398), (2, 14202699), (3, 9468466), (6, 4734233), (7, 4057914), (14, 2028957), (21, 1352638), (42, 676319), (49, 579702), (79, 359562), (98, 289851), (147, 193234), (158, 179781), (237, 119854), (294, 96617), (474, 59927), (553, 51366), (1106, 25683), (1223, 23226), (1659, 17122), (2446, 11613), (3318, 8561), (3669, 7742), (3871, 7338)]