21175239

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{1901}}^1$

素因数の和:2030

約数の個数: 16

約数和(自身を含む): 29214720

約数和(自身を除く): 8039481

約数列:

[1, 3, 47, 79, 141, 237, 1901, 3713, 5703, 11139, 89347, 150179, 268041, 450537, 7058413, 21175239]

約数ペア:

[(1, 21175239), (3, 7058413), (47, 450537), (79, 268041), (141, 150179), (237, 89347), (1901, 11139), (3713, 5703)]