215864

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 446880

約数和(自身を除く): 231016

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 223, 242, 446, 484, 892, 968, 1784, 2453, 4906, 9812, 19624, 26983, 53966, 107932, 215864]

約数ペア:

[(1, 215864), (2, 107932), (4, 53966), (8, 26983), (11, 19624), (22, 9812), (44, 4906), (88, 2453), (121, 1784), (223, 968), (242, 892), (446, 484)]