21068416

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8663}}^1$

素因数の和:8696

約数の個数: 32

約数和(自身を含む): 44186400

約数和(自身を除く): 23117984

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8663, 17326, 34652, 69304, 138608, 164597, 277216, 329194, 554432, 658388, 1108864, 1316776, 2633552, 5267104, 10534208, 21068416]

約数ペア:

[(1, 21068416), (2, 10534208), (4, 5267104), (8, 2633552), (16, 1316776), (19, 1108864), (32, 658388), (38, 554432), (64, 329194), (76, 277216), (128, 164597), (152, 138608), (304, 69304), (608, 34652), (1216, 17326), (2432, 8663)]