21571953

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{24049}}^1$

素因数の和:24088

約数の個数: 16

約数和(自身を含む): 32323200

約数和(自身を除く): 10751247

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 24049, 72147, 312637, 553127, 937911, 1659381, 7190651, 21571953]

約数ペア:

[(1, 21571953), (3, 7190651), (13, 1659381), (23, 937911), (39, 553127), (69, 312637), (299, 72147), (897, 24049)]