18637803

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{773}}^1$

素因数の和:848

約数の個数: 32

約数和(自身を含む): 29721600

約数和(自身を除く): 11083797

約数列:

[1, 3, 9, 19, 27, 47, 57, 141, 171, 423, 513, 773, 893, 1269, 2319, 2679, 6957, 8037, 14687, 20871, 24111, 36331, 44061, 108993, 132183, 326979, 396549, 690289, 980937, 2070867, 6212601, 18637803]

約数ペア:

[(1, 18637803), (3, 6212601), (9, 2070867), (19, 980937), (27, 690289), (47, 396549), (57, 326979), (141, 132183), (171, 108993), (423, 44061), (513, 36331), (773, 24111), (893, 20871), (1269, 14687), (2319, 8037), (2679, 6957)]