21137072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120097}}^1$

素因数の和:120116

約数の個数: 20

約数和(自身を含む): 44676456

約数和(自身を除く): 23539384

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120097, 240194, 480388, 960776, 1321067, 1921552, 2642134, 5284268, 10568536, 21137072]

約数ペア:

[(1, 21137072), (2, 10568536), (4, 5284268), (8, 2642134), (11, 1921552), (16, 1321067), (22, 960776), (44, 480388), (88, 240194), (176, 120097)]