19657552

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64663}}^1$

素因数の和:64690

約数の個数: 20

約数和(自身を含む): 40091680

約数和(自身を除く): 20434128

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64663, 129326, 258652, 517304, 1034608, 1228597, 2457194, 4914388, 9828776, 19657552]

約数ペア:

[(1, 19657552), (2, 9828776), (4, 4914388), (8, 2457194), (16, 1228597), (19, 1034608), (38, 517304), (76, 258652), (152, 129326), (304, 64663)]