213435

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 40

約数和(自身を含む): 418176

約数和(自身を除く): 204741

約数列:

[1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 81, 85, 93, 135, 153, 155, 255, 279, 405, 459, 465, 527, 765, 837, 1377, 1395, 1581, 2295, 2511, 2635, 4185, 4743, 6885, 7905, 12555, 14229, 23715, 42687, 71145, 213435]

約数ペア:

[(1, 213435), (3, 71145), (5, 42687), (9, 23715), (15, 14229), (17, 12555), (27, 7905), (31, 6885), (45, 4743), (51, 4185), (81, 2635), (85, 2511), (93, 2295), (135, 1581), (153, 1395), (155, 1377), (255, 837), (279, 765), (405, 527), (459, 465)]