217620369

素因数分解:

$3^2\times {\mathrm{157}}^1\times {\mathrm{233}}^1\times {\mathrm{661}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 318181032

約数和(自身を除く): 100560663

約数列:

[1, 3, 9, 157, 233, 471, 661, 699, 1413, 1983, 2097, 5949, 36581, 103777, 109743, 154013, 311331, 329229, 462039, 933993, 1386117, 24180041, 72540123, 217620369]

約数ペア:

[(1, 217620369), (3, 72540123), (9, 24180041), (157, 1386117), (233, 933993), (471, 462039), (661, 329229), (699, 311331), (1413, 154013), (1983, 109743), (2097, 103777), (5949, 36581)]