1667421

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 2964000

約数和(自身を除く): 1296579

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 199, 399, 441, 597, 931, 1197, 1393, 1791, 2793, 3781, 4179, 8379, 9751, 11343, 12537, 26467, 29253, 34029, 79401, 87759, 185269, 238203, 555807, 1667421]

約数ペア:

[(1, 1667421), (3, 555807), (7, 238203), (9, 185269), (19, 87759), (21, 79401), (49, 34029), (57, 29253), (63, 26467), (133, 12537), (147, 11343), (171, 9751), (199, 8379), (399, 4179), (441, 3781), (597, 2793), (931, 1791), (1197, 1393)]