19846448

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40013}}^1$

素因数の和:40052

約数の個数: 20

約数和(自身を含む): 39693888

約数和(自身を除く): 19847440

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40013, 80026, 160052, 320104, 640208, 1240403, 2480806, 4961612, 9923224, 19846448]

約数ペア:

[(1, 19846448), (2, 9923224), (4, 4961612), (8, 2480806), (16, 1240403), (31, 640208), (62, 320104), (124, 160052), (248, 80026), (496, 40013)]