21349331

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 24003360

約数和(自身を除く): 2654029

約数列:

[1, 17, 19, 157, 323, 421, 2669, 2983, 7157, 7999, 50711, 66097, 135983, 1123649, 1255843, 21349331]

約数ペア:

[(1, 21349331), (17, 1255843), (19, 1123649), (157, 135983), (323, 66097), (421, 50711), (2669, 7999), (2983, 7157)]