20719443

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 30355200

約数和(自身を除く): 9635757

約数列:

[1, 3, 19, 57, 59, 61, 101, 177, 183, 303, 1121, 1159, 1919, 3363, 3477, 3599, 5757, 5959, 6161, 10797, 17877, 18483, 68381, 113221, 117059, 205143, 339663, 351177, 363499, 1090497, 6906481, 20719443]

約数ペア:

[(1, 20719443), (3, 6906481), (19, 1090497), (57, 363499), (59, 351177), (61, 339663), (101, 205143), (177, 117059), (183, 113221), (303, 68381), (1121, 18483), (1159, 17877), (1919, 10797), (3363, 6161), (3477, 5959), (3599, 5757)]