18769887

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 30474576

約数和(自身を除く): 11704689

約数列:

[1, 3, 9, 17, 27, 43, 51, 81, 129, 153, 317, 387, 459, 731, 951, 1161, 1377, 2193, 2853, 3483, 5389, 6579, 8559, 13631, 16167, 19737, 25677, 40893, 48501, 59211, 122679, 145503, 231727, 368037, 436509, 695181, 1104111, 2085543, 6256629, 18769887]

約数ペア:

[(1, 18769887), (3, 6256629), (9, 2085543), (17, 1104111), (27, 695181), (43, 436509), (51, 368037), (81, 231727), (129, 145503), (153, 122679), (317, 59211), (387, 48501), (459, 40893), (731, 25677), (951, 19737), (1161, 16167), (1377, 13631), (2193, 8559), (2853, 6579), (3483, 5389)]