1287850431

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{56731}}^1$

素因数の和:56811

約数の個数: 32

約数和(自身を含む): 2091368448

約数和(自身を除く): 803518017

約数列:

[1, 3, 7, 21, 23, 47, 69, 141, 161, 329, 483, 987, 1081, 3243, 7567, 22701, 56731, 170193, 397117, 1191351, 1304813, 2666357, 3914439, 7999071, 9133691, 18664499, 27401073, 55993497, 61326211, 183978633, 429283477, 1287850431]

約数ペア:

[(1, 1287850431), (3, 429283477), (7, 183978633), (21, 61326211), (23, 55993497), (47, 27401073), (69, 18664499), (141, 9133691), (161, 7999071), (329, 3914439), (483, 2666357), (987, 1304813), (1081, 1191351), (3243, 397117), (7567, 170193), (22701, 56731)]