21808260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121157}}^1$

素因数の和:121172

約数の個数: 36

約数和(自身を含む): 66152268

約数和(自身を除く): 44344008

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121157, 242314, 363471, 484628, 605785, 726942, 1090413, 1211570, 1453884, 1817355, 2180826, 2423140, 3634710, 4361652, 5452065, 7269420, 10904130, 21808260]

約数ペア:

[(1, 21808260), (2, 10904130), (3, 7269420), (4, 5452065), (5, 4361652), (6, 3634710), (9, 2423140), (10, 2180826), (12, 1817355), (15, 1453884), (18, 1211570), (20, 1090413), (30, 726942), (36, 605785), (45, 484628), (60, 363471), (90, 242314), (180, 121157)]