18985914

素因数分解:

$2^1\times 3^4\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:896

約数の個数: 40

約数和(自身を含む): 42863040

約数和(自身を除く): 23877126

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 163, 326, 489, 719, 978, 1438, 1467, 2157, 2934, 4314, 4401, 6471, 8802, 12942, 13203, 19413, 26406, 38826, 58239, 116478, 117197, 234394, 351591, 703182, 1054773, 2109546, 3164319, 6328638, 9492957, 18985914]

約数ペア:

[(1, 18985914), (2, 9492957), (3, 6328638), (6, 3164319), (9, 2109546), (18, 1054773), (27, 703182), (54, 351591), (81, 234394), (162, 117197), (163, 116478), (326, 58239), (489, 38826), (719, 26406), (978, 19413), (1438, 13203), (1467, 12942), (2157, 8802), (2934, 6471), (4314, 4401)]