20985728

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8629}}^1$

素因数の和:8662

約数の個数: 32

約数和(自身を含む): 44013000

約数和(自身を除く): 23027272

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8629, 17258, 34516, 69032, 138064, 163951, 276128, 327902, 552256, 655804, 1104512, 1311608, 2623216, 5246432, 10492864, 20985728]

約数ペア:

[(1, 20985728), (2, 10492864), (4, 5246432), (8, 2623216), (16, 1311608), (19, 1104512), (32, 655804), (38, 552256), (64, 327902), (76, 276128), (128, 163951), (152, 138064), (304, 69032), (608, 34516), (1216, 17258), (2432, 8629)]