18780051878

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{78907781}}^1$

素因数の和:78907807

約数の個数: 16

約数和(自身を含む): 34088161824

約数和(自身を除く): 15308109946

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 78907781, 157815562, 552354467, 1104708934, 1341432277, 2682864554, 9390025939, 18780051878]

約数ペア:

[(1, 18780051878), (2, 9390025939), (7, 2682864554), (14, 1341432277), (17, 1104708934), (34, 552354467), (119, 157815562), (238, 78907781)]