28072701

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 42132480

約数和(自身を除く): 14059779

約数列:

[1, 3, 9, 31, 93, 239, 279, 421, 717, 1263, 2151, 3789, 7409, 13051, 22227, 39153, 66681, 100619, 117459, 301857, 905571, 3119189, 9357567, 28072701]

約数ペア:

[(1, 28072701), (3, 9357567), (9, 3119189), (31, 905571), (93, 301857), (239, 117459), (279, 100619), (421, 66681), (717, 39153), (1263, 22227), (2151, 13051), (3789, 7409)]