83521431

素因数分解:

$3^2\times 7^2\times {\mathrm{189391}}^1$

素因数の和:189411

約数の個数: 18

約数和(自身を含む): 140339472

約数和(自身を除く): 56818041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 189391, 568173, 1325737, 1704519, 3977211, 9280159, 11931633, 27840477, 83521431]

約数ペア:

[(1, 83521431), (3, 27840477), (7, 11931633), (9, 9280159), (21, 3977211), (49, 1704519), (63, 1325737), (147, 568173), (441, 189391)]