21176488

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1097}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 42163200

約数和(自身を除く): 20986712

約数列:

[1, 2, 4, 8, 19, 38, 76, 127, 152, 254, 508, 1016, 1097, 2194, 2413, 4388, 4826, 8776, 9652, 19304, 20843, 41686, 83372, 139319, 166744, 278638, 557276, 1114552, 2647061, 5294122, 10588244, 21176488]

約数ペア:

[(1, 21176488), (2, 10588244), (4, 5294122), (8, 2647061), (19, 1114552), (38, 557276), (76, 278638), (127, 166744), (152, 139319), (254, 83372), (508, 41686), (1016, 20843), (1097, 19304), (2194, 9652), (2413, 8776), (4388, 4826)]