18663008

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:89

約数の個数: 144

約数和(自身を含む): 49805280

約数和(自身を除く): 31142272

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 29, 32, 34, 52, 56, 58, 68, 91, 104, 112, 116, 119, 136, 169, 182, 203, 208, 221, 224, 232, 238, 272, 338, 364, 377, 406, 416, 442, 464, 476, 493, 544, 676, 728, 754, 812, 884, 928, 952, 986, 1183, 1352, 1456, 1508, 1547, 1624, 1768, 1904, 1972, 2366, 2639, 2704, 2873, 2912, 3016, 3094, 3248, 3451, 3536, 3808, 3944, 4732, 4901, 5278, 5408, 5746, 6032, 6188, 6409, 6496, 6902, 7072, 7888, 9464, 9802, 10556, 11492, 12064, 12376, 12818, 13804, 15776, 18928, 19604, 20111, 21112, 22984, 24752, 25636, 27608, 34307, 37856, 39208, 40222, 42224, 44863, 45968, 49504, 51272, 55216, 68614, 78416, 80444, 83317, 84448, 89726, 91936, 102544, 110432, 137228, 156832, 160888, 166634, 179452, 205088, 274456, 321776, 333268, 358904, 548912, 583219, 643552, 666536, 717808, 1097824, 1166438, 1333072, 1435616, 2332876, 2666144, 4665752, 9331504, 18663008]

約数ペア:

[(1, 18663008), (2, 9331504), (4, 4665752), (7, 2666144), (8, 2332876), (13, 1435616), (14, 1333072), (16, 1166438), (17, 1097824), (26, 717808), (28, 666536), (29, 643552), (32, 583219), (34, 548912), (52, 358904), (56, 333268), (58, 321776), (68, 274456), (91, 205088), (104, 179452), (112, 166634), (116, 160888), (119, 156832), (136, 137228), (169, 110432), (182, 102544), (203, 91936), (208, 89726), (221, 84448), (224, 83317), (232, 80444), (238, 78416), (272, 68614), (338, 55216), (364, 51272), (377, 49504), (406, 45968), (416, 44863), (442, 42224), (464, 40222), (476, 39208), (493, 37856), (544, 34307), (676, 27608), (728, 25636), (754, 24752), (812, 22984), (884, 21112), (928, 20111), (952, 19604), (986, 18928), (1183, 15776), (1352, 13804), (1456, 12818), (1508, 12376), (1547, 12064), (1624, 11492), (1768, 10556), (1904, 9802), (1972, 9464), (2366, 7888), (2639, 7072), (2704, 6902), (2873, 6496), (2912, 6409), (3016, 6188), (3094, 6032), (3248, 5746), (3451, 5408), (3536, 5278), (3808, 4901), (3944, 4732)]