42115221

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{17929}}^1$

素因数の和:17970

約数の個数: 20

約数和(自身を含む): 65085900

約数和(自身を除く): 22970679

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 17929, 53787, 161361, 484083, 519941, 1452249, 1559823, 4679469, 14038407, 42115221]

約数ペア:

[(1, 42115221), (3, 14038407), (9, 4679469), (27, 1559823), (29, 1452249), (81, 519941), (87, 484083), (261, 161361), (783, 53787), (2349, 17929)]