12213257

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{401}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 14793600

約数和(自身を除く): 2580343

約数列:

[1, 7, 19, 133, 229, 401, 1603, 2807, 4351, 7619, 30457, 53333, 91829, 642803, 1744751, 12213257]

約数ペア:

[(1, 12213257), (7, 1744751), (19, 642803), (133, 91829), (229, 53333), (401, 30457), (1603, 7619), (2807, 4351)]