12291221

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 13644288

約数和(自身を除く): 1353067

約数列:

[1, 17, 31, 83, 281, 527, 1411, 2573, 4777, 8711, 23323, 43741, 148087, 396491, 723013, 12291221]

約数ペア:

[(1, 12291221), (17, 723013), (31, 396491), (83, 148087), (281, 43741), (527, 23323), (1411, 8711), (2573, 4777)]