19743235

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{401}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 24409440

約数和(自身を除く): 4666205

約数列:

[1, 5, 43, 215, 229, 401, 1145, 2005, 9847, 17243, 49235, 86215, 91829, 459145, 3948647, 19743235]

約数ペア:

[(1, 19743235), (5, 3948647), (43, 459145), (215, 91829), (229, 86215), (401, 49235), (1145, 17243), (2005, 9847)]