21258003

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1823}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 32044032

約数和(自身を除く): 10786029

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 1823, 3887, 5469, 11661, 23699, 41929, 71097, 125787, 308087, 545077, 924261, 1635231, 7086001, 21258003]

約数ペア:

[(1, 21258003), (3, 7086001), (13, 1635231), (23, 924261), (39, 545077), (69, 308087), (169, 125787), (299, 71097), (507, 41929), (897, 23699), (1823, 11661), (3887, 5469)]