21755988

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1917

約数の個数: 72

約数和(自身を含む): 61326720

約数和(自身を除く): 39570732

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 34, 36, 38, 51, 57, 68, 76, 102, 114, 153, 171, 204, 228, 306, 323, 342, 612, 646, 684, 969, 1292, 1871, 1938, 2907, 3742, 3876, 5613, 5814, 7484, 11226, 11628, 16839, 22452, 31807, 33678, 35549, 63614, 67356, 71098, 95421, 106647, 127228, 142196, 190842, 213294, 286263, 319941, 381684, 426588, 572526, 604333, 639882, 1145052, 1208666, 1279764, 1812999, 2417332, 3625998, 5438997, 7251996, 10877994, 21755988]

約数ペア:

[(1, 21755988), (2, 10877994), (3, 7251996), (4, 5438997), (6, 3625998), (9, 2417332), (12, 1812999), (17, 1279764), (18, 1208666), (19, 1145052), (34, 639882), (36, 604333), (38, 572526), (51, 426588), (57, 381684), (68, 319941), (76, 286263), (102, 213294), (114, 190842), (153, 142196), (171, 127228), (204, 106647), (228, 95421), (306, 71098), (323, 67356), (342, 63614), (612, 35549), (646, 33678), (684, 31807), (969, 22452), (1292, 16839), (1871, 11628), (1938, 11226), (2907, 7484), (3742, 5814), (3876, 5613)]