19892901

素因数分解:

$3^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1303}}^1$

素因数の和:2040

約数の個数: 16

約数和(自身を含む): 30377984

約数和(自身を除く): 10485083

約数列:

[1, 3, 7, 21, 727, 1303, 2181, 3909, 5089, 9121, 15267, 27363, 947281, 2841843, 6630967, 19892901]

約数ペア:

[(1, 19892901), (3, 6630967), (7, 2841843), (21, 947281), (727, 27363), (1303, 15267), (2181, 9121), (3909, 5089)]