18904578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 33350142

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 29, 33, 34, 42, 51, 58, 66, 77, 83, 87, 102, 119, 154, 166, 174, 187, 203, 231, 238, 249, 319, 357, 374, 406, 462, 493, 498, 561, 581, 609, 638, 714, 913, 957, 986, 1122, 1162, 1218, 1309, 1411, 1479, 1743, 1826, 1914, 2233, 2407, 2618, 2739, 2822, 2958, 3451, 3486, 3927, 4233, 4466, 4814, 5423, 5478, 6391, 6699, 6902, 7221, 7854, 8466, 9877, 10353, 10846, 12782, 13398, 14442, 15521, 16269, 16849, 19173, 19754, 20706, 26477, 29631, 31042, 32538, 33698, 37961, 38346, 40919, 46563, 50547, 52954, 59262, 75922, 79431, 81838, 93126, 101094, 108647, 113883, 122757, 158862, 185339, 217294, 227766, 245514, 286433, 325941, 370678, 450109, 556017, 572866, 651882, 859299, 900218, 1112034, 1350327, 1718598, 2700654, 3150763, 6301526, 9452289, 18904578]

約数ペア:

[(1, 18904578), (2, 9452289), (3, 6301526), (6, 3150763), (7, 2700654), (11, 1718598), (14, 1350327), (17, 1112034), (21, 900218), (22, 859299), (29, 651882), (33, 572866), (34, 556017), (42, 450109), (51, 370678), (58, 325941), (66, 286433), (77, 245514), (83, 227766), (87, 217294), (102, 185339), (119, 158862), (154, 122757), (166, 113883), (174, 108647), (187, 101094), (203, 93126), (231, 81838), (238, 79431), (249, 75922), (319, 59262), (357, 52954), (374, 50547), (406, 46563), (462, 40919), (493, 38346), (498, 37961), (561, 33698), (581, 32538), (609, 31042), (638, 29631), (714, 26477), (913, 20706), (957, 19754), (986, 19173), (1122, 16849), (1162, 16269), (1218, 15521), (1309, 14442), (1411, 13398), (1479, 12782), (1743, 10846), (1826, 10353), (1914, 9877), (2233, 8466), (2407, 7854), (2618, 7221), (2739, 6902), (2822, 6699), (2958, 6391), (3451, 5478), (3486, 5423), (3927, 4814), (4233, 4466)]