638346318

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{17387}}^1$

素因数の和:17632

約数の個数: 32

約数和(自身を含む): 1327052160

約数和(自身を除く): 688705842

約数列:

[1, 2, 3, 6, 29, 58, 87, 174, 211, 422, 633, 1266, 6119, 12238, 17387, 18357, 34774, 36714, 52161, 104322, 504223, 1008446, 1512669, 3025338, 3668657, 7337314, 11005971, 22011942, 106391053, 212782106, 319173159, 638346318]

約数ペア:

[(1, 638346318), (2, 319173159), (3, 212782106), (6, 106391053), (29, 22011942), (58, 11005971), (87, 7337314), (174, 3668657), (211, 3025338), (422, 1512669), (633, 1008446), (1266, 504223), (6119, 104322), (12238, 52161), (17387, 36714), (18357, 34774)]