21855680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1$

素因数の和:922

約数の個数: 112

約数和(自身を含む): 64958976

約数和(自身を除く): 43103296

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 880, 887, 1120, 1232, 1540, 1760, 1774, 2240, 2464, 3080, 3520, 3548, 4435, 4928, 6160, 6209, 7096, 8870, 9757, 12320, 12418, 14192, 17740, 19514, 24640, 24836, 28384, 31045, 35480, 39028, 48785, 49672, 56768, 62090, 68299, 70960, 78056, 97570, 99344, 124180, 136598, 141920, 156112, 195140, 198688, 248360, 273196, 283840, 312224, 341495, 390280, 397376, 496720, 546392, 624448, 682990, 780560, 993440, 1092784, 1365980, 1561120, 1986880, 2185568, 2731960, 3122240, 4371136, 5463920, 10927840, 21855680]

約数ペア:

[(1, 21855680), (2, 10927840), (4, 5463920), (5, 4371136), (7, 3122240), (8, 2731960), (10, 2185568), (11, 1986880), (14, 1561120), (16, 1365980), (20, 1092784), (22, 993440), (28, 780560), (32, 682990), (35, 624448), (40, 546392), (44, 496720), (55, 397376), (56, 390280), (64, 341495), (70, 312224), (77, 283840), (80, 273196), (88, 248360), (110, 198688), (112, 195140), (140, 156112), (154, 141920), (160, 136598), (176, 124180), (220, 99344), (224, 97570), (280, 78056), (308, 70960), (320, 68299), (352, 62090), (385, 56768), (440, 49672), (448, 48785), (560, 39028), (616, 35480), (704, 31045), (770, 28384), (880, 24836), (887, 24640), (1120, 19514), (1232, 17740), (1540, 14192), (1760, 12418), (1774, 12320), (2240, 9757), (2464, 8870), (3080, 7096), (3520, 6209), (3548, 6160), (4435, 4928)]