18185019

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 9393861

約数列:

[1, 3, 17, 23, 37, 51, 69, 111, 391, 419, 629, 851, 1173, 1257, 1887, 2553, 7123, 9637, 14467, 15503, 21369, 28911, 43401, 46509, 163829, 263551, 356569, 491487, 790653, 1069707, 6061673, 18185019]

約数ペア:

[(1, 18185019), (3, 6061673), (17, 1069707), (23, 790653), (37, 491487), (51, 356569), (69, 263551), (111, 163829), (391, 46509), (419, 43401), (629, 28911), (851, 21369), (1173, 15503), (1257, 14467), (1887, 9637), (2553, 7123)]