20737664

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8527}}^1$

素因数の和:8560

約数の個数: 32

約数和(自身を含む): 43492800

約数和(自身を除く): 22755136

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8527, 17054, 34108, 68216, 136432, 162013, 272864, 324026, 545728, 648052, 1091456, 1296104, 2592208, 5184416, 10368832, 20737664]

約数ペア:

[(1, 20737664), (2, 10368832), (4, 5184416), (8, 2592208), (16, 1296104), (19, 1091456), (32, 648052), (38, 545728), (64, 324026), (76, 272864), (128, 162013), (152, 136432), (304, 68216), (608, 34108), (1216, 17054), (2432, 8527)]