21054736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69259}}^1$

素因数の和:69286

約数の個数: 20

約数和(自身を含む): 42941200

約数和(自身を除く): 21886464

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69259, 138518, 277036, 554072, 1108144, 1315921, 2631842, 5263684, 10527368, 21054736]

約数ペア:

[(1, 21054736), (2, 10527368), (4, 5263684), (8, 2631842), (16, 1315921), (19, 1108144), (38, 554072), (76, 277036), (152, 138518), (304, 69259)]