2159728

素因数分解:

$2^4\times {\mathrm{347}}^1\times {\mathrm{389}}^1$

素因数の和:744

約数の個数: 20

約数和(自身を含む): 4207320

約数和(自身を除く): 2047592

約数列:

[1, 2, 4, 8, 16, 347, 389, 694, 778, 1388, 1556, 2776, 3112, 5552, 6224, 134983, 269966, 539932, 1079864, 2159728]

約数ペア:

[(1, 2159728), (2, 1079864), (4, 539932), (8, 269966), (16, 134983), (347, 6224), (389, 5552), (694, 3112), (778, 2776), (1388, 1556)]