21800441

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 24467520

約数和(自身を除く): 2667079

約数列:

[1, 13, 43, 59, 559, 661, 767, 2537, 8593, 28423, 32981, 38999, 369499, 506987, 1676957, 21800441]

約数ペア:

[(1, 21800441), (13, 1676957), (43, 506987), (59, 369499), (559, 38999), (661, 32981), (767, 28423), (2537, 8593)]