18867807

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 14678433

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 79, 119, 153, 223, 237, 357, 553, 669, 711, 1071, 1343, 1561, 1659, 2007, 3791, 4029, 4683, 4977, 9401, 11373, 12087, 14049, 17617, 26537, 28203, 34119, 52851, 79611, 84609, 123319, 158553, 238833, 299489, 369957, 898467, 1109871, 2096423, 2695401, 6289269, 18867807]

約数ペア:

[(1, 18867807), (3, 6289269), (7, 2695401), (9, 2096423), (17, 1109871), (21, 898467), (51, 369957), (63, 299489), (79, 238833), (119, 158553), (153, 123319), (223, 84609), (237, 79611), (357, 52851), (553, 34119), (669, 28203), (711, 26537), (1071, 17617), (1343, 14049), (1561, 12087), (1659, 11373), (2007, 9401), (3791, 4977), (4029, 4683)]