20985984

素因数分解:

$2^7\times 3^2\times {\mathrm{18217}}^1$

素因数の和:18237

約数の個数: 48

約数和(自身を含む): 60392670

約数和(自身を除く): 39406686

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 288, 384, 576, 1152, 18217, 36434, 54651, 72868, 109302, 145736, 163953, 218604, 291472, 327906, 437208, 582944, 655812, 874416, 1165888, 1311624, 1748832, 2331776, 2623248, 3497664, 5246496, 6995328, 10492992, 20985984]

約数ペア:

[(1, 20985984), (2, 10492992), (3, 6995328), (4, 5246496), (6, 3497664), (8, 2623248), (9, 2331776), (12, 1748832), (16, 1311624), (18, 1165888), (24, 874416), (32, 655812), (36, 582944), (48, 437208), (64, 327906), (72, 291472), (96, 218604), (128, 163953), (144, 145736), (192, 109302), (288, 72868), (384, 54651), (576, 36434), (1152, 18217)]