21167368

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{887}}^1$

素因数の和:1069

約数の個数: 32

約数和(自身を含む): 42091200

約数和(自身を除く): 20923832

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 157, 314, 628, 887, 1256, 1774, 2983, 3548, 5966, 7096, 11932, 16853, 23864, 33706, 67412, 134824, 139259, 278518, 557036, 1114072, 2645921, 5291842, 10583684, 21167368]

約数ペア:

[(1, 21167368), (2, 10583684), (4, 5291842), (8, 2645921), (19, 1114072), (38, 557036), (76, 278518), (152, 139259), (157, 134824), (314, 67412), (628, 33706), (887, 23864), (1256, 16853), (1774, 11932), (2983, 7096), (3548, 5966)]