20121355878

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257966101}}^1$

素因数の和:257966119

約数の個数: 16

約数和(自身を含む): 43338305136

約数和(自身を除く): 23216949258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257966101, 515932202, 773898303, 1547796606, 3353559313, 6707118626, 10060677939, 20121355878]

約数ペア:

[(1, 20121355878), (2, 10060677939), (3, 6707118626), (6, 3353559313), (13, 1547796606), (26, 773898303), (39, 515932202), (78, 257966101)]