19748648

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 18820312

約数列:

[1, 2, 4, 8, 47, 53, 94, 106, 188, 212, 376, 424, 991, 1982, 2491, 3964, 4982, 7928, 9964, 19928, 46577, 52523, 93154, 105046, 186308, 210092, 372616, 420184, 2468581, 4937162, 9874324, 19748648]

約数ペア:

[(1, 19748648), (2, 9874324), (4, 4937162), (8, 2468581), (47, 420184), (53, 372616), (94, 210092), (106, 186308), (188, 105046), (212, 93154), (376, 52523), (424, 46577), (991, 19928), (1982, 9964), (2491, 7928), (3964, 4982)]