21372872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140611}}^1$

素因数の和:140636

約数の個数: 16

約数和(自身を含む): 42183600

約数和(自身を除く): 20810728

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140611, 281222, 562444, 1124888, 2671609, 5343218, 10686436, 21372872]

約数ペア:

[(1, 21372872), (2, 10686436), (4, 5343218), (8, 2671609), (19, 1124888), (38, 562444), (76, 281222), (152, 140611)]