31911184

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{104971}}^1$

素因数の和:104998

約数の個数: 20

約数和(自身を含む): 65082640

約数和(自身を除く): 33171456

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 104971, 209942, 419884, 839768, 1679536, 1994449, 3988898, 7977796, 15955592, 31911184]

約数ペア:

[(1, 31911184), (2, 15955592), (4, 7977796), (8, 3988898), (16, 1994449), (19, 1679536), (38, 839768), (76, 419884), (152, 209942), (304, 104971)]