19698687

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 48

約数和(自身を含む): 32186880

約数和(自身を除く): 12488193

約数列:

[1, 3, 9, 19, 27, 43, 47, 57, 129, 141, 171, 361, 387, 423, 513, 817, 893, 1083, 1161, 1269, 2021, 2451, 2679, 3249, 6063, 7353, 8037, 9747, 15523, 16967, 18189, 22059, 24111, 38399, 46569, 50901, 54567, 115197, 139707, 152703, 345591, 419121, 458109, 729581, 1036773, 2188743, 6566229, 19698687]

約数ペア:

[(1, 19698687), (3, 6566229), (9, 2188743), (19, 1036773), (27, 729581), (43, 458109), (47, 419121), (57, 345591), (129, 152703), (141, 139707), (171, 115197), (361, 54567), (387, 50901), (423, 46569), (513, 38399), (817, 24111), (893, 22059), (1083, 18189), (1161, 16967), (1269, 15523), (2021, 9747), (2451, 8037), (2679, 7353), (3249, 6063)]