87145821

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10723}}^1$

素因数の和:10782

約数の個数: 32

約数和(自身を含む): 150993920

約数和(自身を除く): 63848099

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127, 10723, 32169, 75061, 96507, 225183, 289521, 461089, 675549, 1383267, 2026647, 3227623, 4149801, 9682869, 12449403, 29048607, 87145821]

約数ペア:

[(1, 87145821), (3, 29048607), (7, 12449403), (9, 9682869), (21, 4149801), (27, 3227623), (43, 2026647), (63, 1383267), (129, 675549), (189, 461089), (301, 289521), (387, 225183), (903, 96507), (1161, 75061), (2709, 32169), (8127, 10723)]