20294883

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5281}}^1$

素因数の和:5355

約数の個数: 24

約数和(自身を含む): 34058336

約数和(自身を除く): 13763453

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5281, 15843, 36967, 47529, 110901, 322141, 332703, 966423, 2254987, 2899269, 6764961, 20294883]

約数ペア:

[(1, 20294883), (3, 6764961), (7, 2899269), (9, 2254987), (21, 966423), (61, 332703), (63, 322141), (183, 110901), (427, 47529), (549, 36967), (1281, 15843), (3843, 5281)]