21828780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121271}}^1$

素因数の和:121286

約数の個数: 36

約数和(自身を含む): 66214512

約数和(自身を除く): 44385732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121271, 242542, 363813, 485084, 606355, 727626, 1091439, 1212710, 1455252, 1819065, 2182878, 2425420, 3638130, 4365756, 5457195, 7276260, 10914390, 21828780]

約数ペア:

[(1, 21828780), (2, 10914390), (3, 7276260), (4, 5457195), (5, 4365756), (6, 3638130), (9, 2425420), (10, 2182878), (12, 1819065), (15, 1455252), (18, 1212710), (20, 1091439), (30, 727626), (36, 606355), (45, 485084), (60, 363813), (90, 242542), (180, 121271)]