21727184

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71471}}^1$

素因数の和:71498

約数の個数: 20

約数和(自身を含む): 44312640

約数和(自身を除く): 22585456

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71471, 142942, 285884, 571768, 1143536, 1357949, 2715898, 5431796, 10863592, 21727184]

約数ペア:

[(1, 21727184), (2, 10863592), (4, 5431796), (8, 2715898), (16, 1357949), (19, 1143536), (38, 571768), (76, 285884), (152, 142942), (304, 71471)]