21214184

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{599}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 20905816

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 233, 466, 599, 932, 1198, 1864, 2396, 4427, 4792, 8854, 11381, 17708, 22762, 35416, 45524, 91048, 139567, 279134, 558268, 1116536, 2651773, 5303546, 10607092, 21214184]

約数ペア:

[(1, 21214184), (2, 10607092), (4, 5303546), (8, 2651773), (19, 1116536), (38, 558268), (76, 279134), (152, 139567), (233, 91048), (466, 45524), (599, 35416), (932, 22762), (1198, 17708), (1864, 11381), (2396, 8854), (4427, 4792)]