21079408

素因数分解:

$2^4\times 7^3\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:219

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 28917392

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 167, 184, 196, 322, 334, 343, 368, 392, 644, 668, 686, 784, 1127, 1169, 1288, 1336, 1372, 2254, 2338, 2576, 2672, 2744, 3841, 4508, 4676, 5488, 7682, 7889, 8183, 9016, 9352, 15364, 15778, 16366, 18032, 18704, 26887, 30728, 31556, 32732, 53774, 57281, 61456, 63112, 65464, 107548, 114562, 126224, 130928, 188209, 215096, 229124, 376418, 430192, 458248, 752836, 916496, 1317463, 1505672, 2634926, 3011344, 5269852, 10539704, 21079408]

約数ペア:

[(1, 21079408), (2, 10539704), (4, 5269852), (7, 3011344), (8, 2634926), (14, 1505672), (16, 1317463), (23, 916496), (28, 752836), (46, 458248), (49, 430192), (56, 376418), (92, 229124), (98, 215096), (112, 188209), (161, 130928), (167, 126224), (184, 114562), (196, 107548), (322, 65464), (334, 63112), (343, 61456), (368, 57281), (392, 53774), (644, 32732), (668, 31556), (686, 30728), (784, 26887), (1127, 18704), (1169, 18032), (1288, 16366), (1336, 15778), (1372, 15364), (2254, 9352), (2338, 9016), (2576, 8183), (2672, 7889), (2744, 7682), (3841, 5488), (4508, 4676)]