21130318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{50551}}^1$

素因数の和:50583

約数の個数: 16

約数和(自身を含む): 36397440

約数和(自身を除く): 15267122

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 50551, 101102, 556061, 960469, 1112122, 1920938, 10565159, 21130318]

約数ペア:

[(1, 21130318), (2, 10565159), (11, 1920938), (19, 1112122), (22, 960469), (38, 556061), (209, 101102), (418, 50551)]