19891904

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 56

約数和(自身を含む): 42793920

約数和(自身を除く): 22902016

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 64, 68, 94, 136, 188, 272, 376, 389, 544, 752, 778, 799, 1088, 1504, 1556, 1598, 3008, 3112, 3196, 6224, 6392, 6613, 12448, 12784, 13226, 18283, 24896, 25568, 26452, 36566, 51136, 52904, 73132, 105808, 146264, 211616, 292528, 310811, 423232, 585056, 621622, 1170112, 1243244, 2486488, 4972976, 9945952, 19891904]

約数ペア:

[(1, 19891904), (2, 9945952), (4, 4972976), (8, 2486488), (16, 1243244), (17, 1170112), (32, 621622), (34, 585056), (47, 423232), (64, 310811), (68, 292528), (94, 211616), (136, 146264), (188, 105808), (272, 73132), (376, 52904), (389, 51136), (544, 36566), (752, 26452), (778, 25568), (799, 24896), (1088, 18283), (1504, 13226), (1556, 12784), (1598, 12448), (3008, 6613), (3112, 6392), (3196, 6224)]