291239835

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1\times {\mathrm{1571}}^1$

素因数の和:2323

約数の個数: 32

約数和(自身を含む): 494387712

約数和(自身を除く): 203147877

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 727, 1571, 2181, 3635, 4713, 7855, 10905, 12359, 23565, 26707, 37077, 61795, 80121, 133535, 185385, 400605, 1142117, 3426351, 5710585, 17131755, 19415989, 58247967, 97079945, 291239835]

約数ペア:

[(1, 291239835), (3, 97079945), (5, 58247967), (15, 19415989), (17, 17131755), (51, 5710585), (85, 3426351), (255, 1142117), (727, 400605), (1571, 185385), (2181, 133535), (3635, 80121), (4713, 61795), (7855, 37077), (10905, 26707), (12359, 23565)]