18008217

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 27984000

約数和(自身を除く): 9975783

約数列:

[1, 3, 9, 27, 29, 87, 109, 211, 261, 327, 633, 783, 981, 1899, 2943, 3161, 5697, 6119, 9483, 18357, 22999, 28449, 55071, 68997, 85347, 165213, 206991, 620973, 666971, 2000913, 6002739, 18008217]

約数ペア:

[(1, 18008217), (3, 6002739), (9, 2000913), (27, 666971), (29, 620973), (87, 206991), (109, 165213), (211, 85347), (261, 68997), (327, 55071), (633, 28449), (783, 22999), (981, 18357), (1899, 9483), (2943, 6119), (3161, 5697)]