21343348

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31573}}^1$

素因数の和:31603

約数の個数: 18

約数和(自身を含む): 40446294

約数和(自身を除く): 19102946

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 31573, 63146, 126292, 410449, 820898, 1641796, 5335837, 10671674, 21343348]

約数ペア:

[(1, 21343348), (2, 10671674), (4, 5335837), (13, 1641796), (26, 820898), (52, 410449), (169, 126292), (338, 63146), (676, 31573)]