21185164

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:96

約数の個数: 108

約数和(自身を含む): 51793392

約数和(自身を除く): 30608228

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 37, 44, 52, 74, 77, 91, 121, 143, 148, 154, 169, 182, 242, 259, 286, 308, 338, 364, 407, 481, 484, 518, 572, 676, 814, 847, 962, 1001, 1036, 1183, 1573, 1628, 1694, 1859, 1924, 2002, 2366, 2849, 3146, 3367, 3388, 3718, 4004, 4477, 4732, 5291, 5698, 6253, 6292, 6734, 7436, 8954, 10582, 11011, 11396, 12506, 13013, 13468, 17908, 20449, 21164, 22022, 25012, 26026, 31339, 37037, 40898, 43771, 44044, 52052, 58201, 62678, 68783, 74074, 81796, 87542, 116402, 125356, 137566, 143143, 148148, 175084, 232804, 275132, 286286, 407407, 481481, 572572, 756613, 814814, 962962, 1513226, 1629628, 1925924, 3026452, 5296291, 10592582, 21185164]

約数ペア:

[(1, 21185164), (2, 10592582), (4, 5296291), (7, 3026452), (11, 1925924), (13, 1629628), (14, 1513226), (22, 962962), (26, 814814), (28, 756613), (37, 572572), (44, 481481), (52, 407407), (74, 286286), (77, 275132), (91, 232804), (121, 175084), (143, 148148), (148, 143143), (154, 137566), (169, 125356), (182, 116402), (242, 87542), (259, 81796), (286, 74074), (308, 68783), (338, 62678), (364, 58201), (407, 52052), (481, 44044), (484, 43771), (518, 40898), (572, 37037), (676, 31339), (814, 26026), (847, 25012), (962, 22022), (1001, 21164), (1036, 20449), (1183, 17908), (1573, 13468), (1628, 13013), (1694, 12506), (1859, 11396), (1924, 11011), (2002, 10582), (2366, 8954), (2849, 7436), (3146, 6734), (3367, 6292), (3388, 6253), (3718, 5698), (4004, 5291), (4477, 4732)]