220055031

素因数分解:

$3^2\times 7^2\times {\mathrm{229}}^1\times {\mathrm{2179}}^1$

素因数の和:2428

約数の個数: 36

約数和(自身を含む): 371537400

約数和(自身を除く): 151482369

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 229, 441, 687, 1603, 2061, 2179, 4809, 6537, 11221, 14427, 15253, 19611, 33663, 45759, 100989, 106771, 137277, 320313, 498991, 960939, 1496973, 3492937, 4490919, 10478811, 24450559, 31436433, 73351677, 220055031]

約数ペア:

[(1, 220055031), (3, 73351677), (7, 31436433), (9, 24450559), (21, 10478811), (49, 4490919), (63, 3492937), (147, 1496973), (229, 960939), (441, 498991), (687, 320313), (1603, 137277), (2061, 106771), (2179, 100989), (4809, 45759), (6537, 33663), (11221, 19611), (14427, 15253)]