19864336

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 39934944

約数和(自身を除く): 20070608

約数列:

[1, 2, 4, 8, 16, 41, 82, 107, 164, 214, 283, 328, 428, 566, 656, 856, 1132, 1712, 2264, 4387, 4528, 8774, 11603, 17548, 23206, 30281, 35096, 46412, 60562, 70192, 92824, 121124, 185648, 242248, 484496, 1241521, 2483042, 4966084, 9932168, 19864336]

約数ペア:

[(1, 19864336), (2, 9932168), (4, 4966084), (8, 2483042), (16, 1241521), (41, 484496), (82, 242248), (107, 185648), (164, 121124), (214, 92824), (283, 70192), (328, 60562), (428, 46412), (566, 35096), (656, 30281), (856, 23206), (1132, 17548), (1712, 11603), (2264, 8774), (4387, 4528)]