18319707

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 32348160

約数和(自身を除く): 14028453

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 141, 161, 207, 269, 329, 423, 483, 807, 987, 1081, 1449, 1883, 2421, 2961, 3243, 5649, 6187, 7567, 9729, 12643, 16947, 18561, 22701, 37929, 43309, 55683, 68103, 88501, 113787, 129927, 265503, 290789, 389781, 796509, 872367, 2035523, 2617101, 6106569, 18319707]

約数ペア:

[(1, 18319707), (3, 6106569), (7, 2617101), (9, 2035523), (21, 872367), (23, 796509), (47, 389781), (63, 290789), (69, 265503), (141, 129927), (161, 113787), (207, 88501), (269, 68103), (329, 55683), (423, 43309), (483, 37929), (807, 22701), (987, 18561), (1081, 16947), (1449, 12643), (1883, 9729), (2421, 7567), (2961, 6187), (3243, 5649)]