199198671

素因数分解:

$3^1\times 7^2\times {\mathrm{523}}^1\times {\mathrm{2591}}^1$

素因数の和:3131

約数の個数: 24

約数和(自身を含む): 309671424

約数和(自身を除く): 110472753

約数列:

[1, 3, 7, 21, 49, 147, 523, 1569, 2591, 3661, 7773, 10983, 18137, 25627, 54411, 76881, 126959, 380877, 1355093, 4065279, 9485651, 28456953, 66399557, 199198671]

約数ペア:

[(1, 199198671), (3, 66399557), (7, 28456953), (21, 9485651), (49, 4065279), (147, 1355093), (523, 380877), (1569, 126959), (2591, 76881), (3661, 54411), (7773, 25627), (10983, 18137)]