21964760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28901}}^1$

素因数の和:28931

約数の個数: 32

約数和(自身を含む): 52023600

約数和(自身を除く): 30058840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28901, 57802, 115604, 144505, 231208, 289010, 549119, 578020, 1098238, 1156040, 2196476, 2745595, 4392952, 5491190, 10982380, 21964760]

約数ペア:

[(1, 21964760), (2, 10982380), (4, 5491190), (5, 4392952), (8, 2745595), (10, 2196476), (19, 1156040), (20, 1098238), (38, 578020), (40, 549119), (76, 289010), (95, 231208), (152, 144505), (190, 115604), (380, 57802), (760, 28901)]