21415548

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 144

約数和(自身を含む): 65542400

約数和(自身を除く): 44126852

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 43, 44, 49, 66, 77, 84, 86, 98, 121, 129, 132, 147, 154, 172, 196, 231, 242, 258, 294, 301, 308, 343, 363, 462, 473, 484, 516, 539, 588, 602, 686, 726, 847, 903, 924, 946, 1029, 1078, 1204, 1372, 1419, 1452, 1617, 1694, 1806, 1892, 2058, 2107, 2156, 2541, 2838, 3234, 3311, 3388, 3612, 3773, 4116, 4214, 5082, 5203, 5676, 5929, 6321, 6468, 6622, 7546, 8428, 9933, 10164, 10406, 11319, 11858, 12642, 13244, 14749, 15092, 15609, 17787, 19866, 20812, 22638, 23177, 23716, 25284, 29498, 31218, 35574, 36421, 39732, 41503, 44247, 45276, 46354, 58996, 62436, 69531, 71148, 72842, 83006, 88494, 92708, 109263, 124509, 139062, 145684, 162239, 166012, 176988, 218526, 249018, 254947, 278124, 324478, 437052, 486717, 498036, 509894, 648956, 764841, 973434, 1019788, 1529682, 1784629, 1946868, 3059364, 3569258, 5353887, 7138516, 10707774, 21415548]

約数ペア:

[(1, 21415548), (2, 10707774), (3, 7138516), (4, 5353887), (6, 3569258), (7, 3059364), (11, 1946868), (12, 1784629), (14, 1529682), (21, 1019788), (22, 973434), (28, 764841), (33, 648956), (42, 509894), (43, 498036), (44, 486717), (49, 437052), (66, 324478), (77, 278124), (84, 254947), (86, 249018), (98, 218526), (121, 176988), (129, 166012), (132, 162239), (147, 145684), (154, 139062), (172, 124509), (196, 109263), (231, 92708), (242, 88494), (258, 83006), (294, 72842), (301, 71148), (308, 69531), (343, 62436), (363, 58996), (462, 46354), (473, 45276), (484, 44247), (516, 41503), (539, 39732), (588, 36421), (602, 35574), (686, 31218), (726, 29498), (847, 25284), (903, 23716), (924, 23177), (946, 22638), (1029, 20812), (1078, 19866), (1204, 17787), (1372, 15609), (1419, 15092), (1452, 14749), (1617, 13244), (1694, 12642), (1806, 11858), (1892, 11319), (2058, 10406), (2107, 10164), (2156, 9933), (2541, 8428), (2838, 7546), (3234, 6622), (3311, 6468), (3388, 6321), (3612, 5929), (3773, 5676), (4116, 5203), (4214, 5082)]