19844784

素因数分解:

$2^4\times 3^3\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:735

約数の個数: 80

約数和(自身を含む): 57853440

約数和(自身を除く): 38008656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 71, 72, 108, 142, 144, 213, 216, 284, 426, 432, 568, 639, 647, 852, 1136, 1278, 1294, 1704, 1917, 1941, 2556, 2588, 3408, 3834, 3882, 5112, 5176, 5823, 7668, 7764, 10224, 10352, 11646, 15336, 15528, 17469, 23292, 30672, 31056, 34938, 45937, 46584, 69876, 91874, 93168, 137811, 139752, 183748, 275622, 279504, 367496, 413433, 551244, 734992, 826866, 1102488, 1240299, 1653732, 2204976, 2480598, 3307464, 4961196, 6614928, 9922392, 19844784]

約数ペア:

[(1, 19844784), (2, 9922392), (3, 6614928), (4, 4961196), (6, 3307464), (8, 2480598), (9, 2204976), (12, 1653732), (16, 1240299), (18, 1102488), (24, 826866), (27, 734992), (36, 551244), (48, 413433), (54, 367496), (71, 279504), (72, 275622), (108, 183748), (142, 139752), (144, 137811), (213, 93168), (216, 91874), (284, 69876), (426, 46584), (432, 45937), (568, 34938), (639, 31056), (647, 30672), (852, 23292), (1136, 17469), (1278, 15528), (1294, 15336), (1704, 11646), (1917, 10352), (1941, 10224), (2556, 7764), (2588, 7668), (3408, 5823), (3834, 5176), (3882, 5112)]