18865143

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:737

約数の個数: 40

約数和(自身を含む): 31781376

約数和(自身を除く): 12916233

約数列:

[1, 3, 9, 11, 27, 31, 33, 81, 93, 99, 279, 297, 341, 683, 837, 891, 1023, 2049, 2511, 3069, 6147, 7513, 9207, 18441, 21173, 22539, 27621, 55323, 63519, 67617, 190557, 202851, 232903, 571671, 608553, 698709, 1715013, 2096127, 6288381, 18865143]

約数ペア:

[(1, 18865143), (3, 6288381), (9, 2096127), (11, 1715013), (27, 698709), (31, 608553), (33, 571671), (81, 232903), (93, 202851), (99, 190557), (279, 67617), (297, 63519), (341, 55323), (683, 27621), (837, 22539), (891, 21173), (1023, 18441), (2049, 9207), (2511, 7513), (3069, 6147)]