28779129

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 46425600

約数和(自身を除く): 17646471

約数列:

[1, 3, 9, 19, 31, 57, 61, 89, 93, 171, 183, 267, 279, 549, 589, 801, 1159, 1691, 1767, 1891, 2759, 3477, 5073, 5301, 5429, 5673, 8277, 10431, 15219, 16287, 17019, 24831, 35929, 48861, 52421, 103151, 107787, 157263, 168299, 309453, 323361, 471789, 504897, 928359, 1514691, 3197681, 9593043, 28779129]

約数ペア:

[(1, 28779129), (3, 9593043), (9, 3197681), (19, 1514691), (31, 928359), (57, 504897), (61, 471789), (89, 323361), (93, 309453), (171, 168299), (183, 157263), (267, 107787), (279, 103151), (549, 52421), (589, 48861), (801, 35929), (1159, 24831), (1691, 17019), (1767, 16287), (1891, 15219), (2759, 10431), (3477, 8277), (5073, 5673), (5301, 5429)]