15620739

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 22693440

約数和(自身を除く): 7072701

約数列:

[1, 3, 17, 43, 51, 129, 289, 419, 731, 867, 1257, 2193, 7123, 12427, 18017, 21369, 37281, 54051, 121091, 306289, 363273, 918867, 5206913, 15620739]

約数ペア:

[(1, 15620739), (3, 5206913), (17, 918867), (43, 363273), (51, 306289), (129, 121091), (289, 54051), (419, 37281), (731, 21369), (867, 18017), (1257, 12427), (2193, 7123)]