21365223

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15791}}^1$

素因数の和:15846

約数の個数: 16

約数和(自身を含む): 31836672

約数和(自身を除く): 10471449

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15791, 47373, 173701, 521103, 647431, 1942293, 7121741, 21365223]

約数ペア:

[(1, 21365223), (3, 7121741), (11, 1942293), (33, 647431), (41, 521103), (123, 173701), (451, 47373), (1353, 15791)]