21950487

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2719}}^1$

素因数の和:2764

約数の個数: 32

約数和(自身を含む): 36556800

約数和(自身を除く): 14606313

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2691, 2719, 8073, 8157, 24471, 35347, 62537, 73413, 106041, 187611, 318123, 562833, 812981, 954369, 1688499, 2438943, 7316829, 21950487]

約数ペア:

[(1, 21950487), (3, 7316829), (9, 2438943), (13, 1688499), (23, 954369), (27, 812981), (39, 562833), (69, 318123), (117, 187611), (207, 106041), (299, 73413), (351, 62537), (621, 35347), (897, 24471), (2691, 8157), (2719, 8073)]