19840976

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{1229}}^1$

素因数の和:2246

約数の個数: 20

約数和(自身を含む): 38511300

約数和(自身を除く): 18670324

約数列:

[1, 2, 4, 8, 16, 1009, 1229, 2018, 2458, 4036, 4916, 8072, 9832, 16144, 19664, 1240061, 2480122, 4960244, 9920488, 19840976]

約数ペア:

[(1, 19840976), (2, 9920488), (4, 4960244), (8, 2480122), (16, 1240061), (1009, 19664), (1229, 16144), (2018, 9832), (2458, 8072), (4036, 4916)]