18858123

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 29427200

約数和(自身を除く): 10569077

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 439, 999, 1161, 1317, 1591, 3951, 4773, 11853, 14319, 16243, 18877, 42957, 48729, 56631, 146187, 169893, 438561, 509679, 698449, 2095347, 6286041, 18858123]

約数ペア:

[(1, 18858123), (3, 6286041), (9, 2095347), (27, 698449), (37, 509679), (43, 438561), (111, 169893), (129, 146187), (333, 56631), (387, 48729), (439, 42957), (999, 18877), (1161, 16243), (1317, 14319), (1591, 11853), (3951, 4773)]