21579392

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 46707840

約数和(自身を除く): 25128448

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 64, 68, 94, 128, 136, 188, 211, 272, 376, 422, 544, 752, 799, 844, 1088, 1504, 1598, 1688, 2176, 3008, 3196, 3376, 3587, 6016, 6392, 6752, 7174, 9917, 12784, 13504, 14348, 19834, 25568, 27008, 28696, 39668, 51136, 57392, 79336, 102272, 114784, 158672, 168589, 229568, 317344, 337178, 459136, 634688, 674356, 1269376, 1348712, 2697424, 5394848, 10789696, 21579392]

約数ペア:

[(1, 21579392), (2, 10789696), (4, 5394848), (8, 2697424), (16, 1348712), (17, 1269376), (32, 674356), (34, 634688), (47, 459136), (64, 337178), (68, 317344), (94, 229568), (128, 168589), (136, 158672), (188, 114784), (211, 102272), (272, 79336), (376, 57392), (422, 51136), (544, 39668), (752, 28696), (799, 27008), (844, 25568), (1088, 19834), (1504, 14348), (1598, 13504), (1688, 12784), (2176, 9917), (3008, 7174), (3196, 6752), (3376, 6392), (3587, 6016)]