19974643

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 24675840

約数和(自身を除く): 4701197

約数列:

[1, 13, 17, 19, 67, 71, 221, 247, 323, 871, 923, 1139, 1207, 1273, 1349, 4199, 4757, 14807, 15691, 16549, 17537, 21641, 22933, 61841, 80869, 90383, 281333, 298129, 1051297, 1174979, 1536511, 19974643]

約数ペア:

[(1, 19974643), (13, 1536511), (17, 1174979), (19, 1051297), (67, 298129), (71, 281333), (221, 90383), (247, 80869), (323, 61841), (871, 22933), (923, 21641), (1139, 17537), (1207, 16549), (1273, 15691), (1349, 14807), (4199, 4757)]