19503701

素因数分解:

$7^1\times {\mathrm{23}}^3\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 16

約数和(自身を含む): 23404800

約数和(自身を除く): 3901099

約数列:

[1, 7, 23, 161, 229, 529, 1603, 3703, 5267, 12167, 36869, 85169, 121141, 847987, 2786243, 19503701]

約数ペア:

[(1, 19503701), (7, 2786243), (23, 847987), (161, 121141), (229, 85169), (529, 36869), (1603, 12167), (3703, 5267)]