21958984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1979}}^1$

素因数の和:2077

約数の個数: 32

約数和(自身を含む): 43956000

約数和(自身を除く): 21997016

約数列:

[1, 2, 4, 8, 19, 38, 73, 76, 146, 152, 292, 584, 1387, 1979, 2774, 3958, 5548, 7916, 11096, 15832, 37601, 75202, 144467, 150404, 288934, 300808, 577868, 1155736, 2744873, 5489746, 10979492, 21958984]

約数ペア:

[(1, 21958984), (2, 10979492), (4, 5489746), (8, 2744873), (19, 1155736), (38, 577868), (73, 300808), (76, 288934), (146, 150404), (152, 144467), (292, 75202), (584, 37601), (1387, 15832), (1979, 11096), (2774, 7916), (3958, 5548)]