18782469

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 30723840

約数和(自身を除く): 11941371

約数列:

[1, 3, 9, 19, 27, 41, 47, 57, 123, 141, 171, 361, 369, 423, 513, 779, 893, 1083, 1107, 1269, 1927, 2337, 2679, 3249, 5781, 7011, 8037, 9747, 14801, 16967, 17343, 21033, 24111, 36613, 44403, 50901, 52029, 109839, 133209, 152703, 329517, 399627, 458109, 695647, 988551, 2086941, 6260823, 18782469]

約数ペア:

[(1, 18782469), (3, 6260823), (9, 2086941), (19, 988551), (27, 695647), (41, 458109), (47, 399627), (57, 329517), (123, 152703), (141, 133209), (171, 109839), (361, 52029), (369, 50901), (423, 44403), (513, 36613), (779, 24111), (893, 21033), (1083, 17343), (1107, 16967), (1269, 14801), (1927, 9747), (2337, 8037), (2679, 7011), (3249, 5781)]