21144872

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30565528

約数列:

[1, 2, 4, 7, 8, 14, 17, 19, 28, 34, 38, 49, 56, 68, 76, 98, 119, 133, 136, 152, 167, 196, 238, 266, 323, 334, 392, 476, 532, 646, 668, 833, 931, 952, 1064, 1169, 1292, 1336, 1666, 1862, 2261, 2338, 2584, 2839, 3173, 3332, 3724, 4522, 4676, 5678, 6346, 6664, 7448, 8183, 9044, 9352, 11356, 12692, 15827, 16366, 18088, 19873, 22211, 22712, 25384, 31654, 32732, 39746, 44422, 53941, 63308, 65464, 79492, 88844, 107882, 126616, 139111, 155477, 158984, 177688, 215764, 278222, 310954, 377587, 431528, 556444, 621908, 755174, 1112888, 1243816, 1510348, 2643109, 3020696, 5286218, 10572436, 21144872]

約数ペア:

[(1, 21144872), (2, 10572436), (4, 5286218), (7, 3020696), (8, 2643109), (14, 1510348), (17, 1243816), (19, 1112888), (28, 755174), (34, 621908), (38, 556444), (49, 431528), (56, 377587), (68, 310954), (76, 278222), (98, 215764), (119, 177688), (133, 158984), (136, 155477), (152, 139111), (167, 126616), (196, 107882), (238, 88844), (266, 79492), (323, 65464), (334, 63308), (392, 53941), (476, 44422), (532, 39746), (646, 32732), (668, 31654), (833, 25384), (931, 22712), (952, 22211), (1064, 19873), (1169, 18088), (1292, 16366), (1336, 15827), (1666, 12692), (1862, 11356), (2261, 9352), (2338, 9044), (2584, 8183), (2839, 7448), (3173, 6664), (3332, 6346), (3724, 5678), (4522, 4676)]