278317053

素因数分解:

$3^4\times 7^1\times {\mathrm{490859}}^1$

素因数の和:490878

約数の個数: 20

約数和(自身を含む): 475152480

約数和(自身を除く): 196835427

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 490859, 1472577, 3436013, 4417731, 10308039, 13253193, 30924117, 39759579, 92772351, 278317053]

約数ペア:

[(1, 278317053), (3, 92772351), (7, 39759579), (9, 30924117), (21, 13253193), (27, 10308039), (63, 4417731), (81, 3436013), (189, 1472577), (567, 490859)]