21168546

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:719

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31086174

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 41, 42, 57, 82, 114, 123, 133, 246, 266, 287, 399, 574, 647, 779, 798, 861, 1294, 1558, 1722, 1941, 2337, 3882, 4529, 4674, 5453, 9058, 10906, 12293, 13587, 16359, 24586, 26527, 27174, 32718, 36879, 53054, 73758, 79581, 86051, 159162, 172102, 185689, 258153, 371378, 504013, 516306, 557067, 1008026, 1114134, 1512039, 3024078, 3528091, 7056182, 10584273, 21168546]

約数ペア:

[(1, 21168546), (2, 10584273), (3, 7056182), (6, 3528091), (7, 3024078), (14, 1512039), (19, 1114134), (21, 1008026), (38, 557067), (41, 516306), (42, 504013), (57, 371378), (82, 258153), (114, 185689), (123, 172102), (133, 159162), (246, 86051), (266, 79581), (287, 73758), (399, 53054), (574, 36879), (647, 32718), (779, 27174), (798, 26527), (861, 24586), (1294, 16359), (1558, 13587), (1722, 12293), (1941, 10906), (2337, 9058), (3882, 5453), (4529, 4674)]