21983780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:333

約数の個数: 96

約数和(自身を含む): 58254336

約数和(自身を除く): 36270556

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 47, 52, 65, 70, 91, 94, 130, 140, 182, 188, 235, 257, 260, 329, 364, 455, 470, 514, 611, 658, 910, 940, 1028, 1222, 1285, 1316, 1645, 1799, 1820, 2444, 2570, 3055, 3290, 3341, 3598, 4277, 5140, 6110, 6580, 6682, 7196, 8554, 8995, 12079, 12220, 13364, 16705, 17108, 17990, 21385, 23387, 24158, 33410, 35980, 42770, 46774, 48316, 60395, 66820, 84553, 85540, 93548, 116935, 120790, 157027, 169106, 233870, 241580, 314054, 338212, 422765, 467740, 628108, 785135, 845530, 1099189, 1570270, 1691060, 2198378, 3140540, 4396756, 5495945, 10991890, 21983780]

約数ペア:

[(1, 21983780), (2, 10991890), (4, 5495945), (5, 4396756), (7, 3140540), (10, 2198378), (13, 1691060), (14, 1570270), (20, 1099189), (26, 845530), (28, 785135), (35, 628108), (47, 467740), (52, 422765), (65, 338212), (70, 314054), (91, 241580), (94, 233870), (130, 169106), (140, 157027), (182, 120790), (188, 116935), (235, 93548), (257, 85540), (260, 84553), (329, 66820), (364, 60395), (455, 48316), (470, 46774), (514, 42770), (611, 35980), (658, 33410), (910, 24158), (940, 23387), (1028, 21385), (1222, 17990), (1285, 17108), (1316, 16705), (1645, 13364), (1799, 12220), (1820, 12079), (2444, 8995), (2570, 8554), (3055, 7196), (3290, 6682), (3341, 6580), (3598, 6110), (4277, 5140)]