21150754

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 36957888

約数和(自身を除く): 15807134

約数列:

[1, 2, 17, 23, 34, 37, 43, 46, 74, 86, 289, 391, 578, 629, 731, 782, 851, 989, 1258, 1462, 1591, 1702, 1978, 3182, 6647, 10693, 12427, 13294, 14467, 16813, 21386, 24854, 27047, 28934, 33626, 36593, 54094, 73186, 245939, 285821, 459799, 491878, 571642, 622081, 919598, 1244162, 10575377, 21150754]

約数ペア:

[(1, 21150754), (2, 10575377), (17, 1244162), (23, 919598), (34, 622081), (37, 571642), (43, 491878), (46, 459799), (74, 285821), (86, 245939), (289, 73186), (391, 54094), (578, 36593), (629, 33626), (731, 28934), (782, 27047), (851, 24854), (989, 21386), (1258, 16813), (1462, 14467), (1591, 13294), (1702, 12427), (1978, 10693), (3182, 6647)]