18860964479

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3947}}^1$

素因数の和:4084

約数の個数: 48

約数和(自身を含む): 23874471936

約数和(自身を除く): 5013507457

約数列:

[1, 7, 19, 31, 61, 133, 217, 361, 427, 589, 1159, 1891, 2527, 3947, 4123, 8113, 11191, 13237, 22021, 27629, 35929, 74993, 78337, 122357, 154147, 240767, 251503, 524951, 682651, 856499, 1424867, 1685369, 2324783, 4574573, 4778557, 7463777, 9974069, 16273481, 32022011, 44170877, 52246439, 86916887, 141811763, 309196139, 608418209, 992682341, 2694423497, 18860964479]

約数ペア:

[(1, 18860964479), (7, 2694423497), (19, 992682341), (31, 608418209), (61, 309196139), (133, 141811763), (217, 86916887), (361, 52246439), (427, 44170877), (589, 32022011), (1159, 16273481), (1891, 9974069), (2527, 7463777), (3947, 4778557), (4123, 4574573), (8113, 2324783), (11191, 1685369), (13237, 1424867), (22021, 856499), (27629, 682651), (35929, 524951), (74993, 251503), (78337, 240767), (122357, 154147)]