21881958

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1613}}^1$

素因数の和:1661

約数の個数: 64

約数和(自身を含む): 55779840

約数和(自身を除く): 33897882

約数列:

[1, 2, 3, 6, 7, 14, 17, 19, 21, 34, 38, 42, 51, 57, 102, 114, 119, 133, 238, 266, 323, 357, 399, 646, 714, 798, 969, 1613, 1938, 2261, 3226, 4522, 4839, 6783, 9678, 11291, 13566, 22582, 27421, 30647, 33873, 54842, 61294, 67746, 82263, 91941, 164526, 183882, 191947, 214529, 383894, 429058, 520999, 575841, 643587, 1041998, 1151682, 1287174, 1562997, 3125994, 3646993, 7293986, 10940979, 21881958]

約数ペア:

[(1, 21881958), (2, 10940979), (3, 7293986), (6, 3646993), (7, 3125994), (14, 1562997), (17, 1287174), (19, 1151682), (21, 1041998), (34, 643587), (38, 575841), (42, 520999), (51, 429058), (57, 383894), (102, 214529), (114, 191947), (119, 183882), (133, 164526), (238, 91941), (266, 82263), (323, 67746), (357, 61294), (399, 54842), (646, 33873), (714, 30647), (798, 27421), (969, 22582), (1613, 13566), (1938, 11291), (2261, 9678), (3226, 6783), (4522, 4839)]