12215043

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{7937}}^1$

素因数の和:7968

約数の個数: 20

約数和(自身を含む): 19209960

約数和(自身を除く): 6994917

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 7937, 23811, 71433, 150803, 214299, 452409, 642897, 1357227, 4071681, 12215043]

約数ペア:

[(1, 12215043), (3, 4071681), (9, 1357227), (19, 642897), (27, 452409), (57, 214299), (81, 150803), (171, 71433), (513, 23811), (1539, 7937)]