21125997

素因数分解:

$3^2\times {\mathrm{439}}^1\times {\mathrm{5347}}^1$

素因数の和:5792

約数の個数: 12

約数和(自身を含む): 30590560

約数和(自身を除く): 9464563

約数列:

[1, 3, 9, 439, 1317, 3951, 5347, 16041, 48123, 2347333, 7041999, 21125997]

約数ペア:

[(1, 21125997), (3, 7041999), (9, 2347333), (439, 48123), (1317, 16041), (3951, 5347)]