21855780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121421}}^1$

素因数の和:121436

約数の個数: 36

約数和(自身を含む): 66296412

約数和(自身を除く): 44440632

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121421, 242842, 364263, 485684, 607105, 728526, 1092789, 1214210, 1457052, 1821315, 2185578, 2428420, 3642630, 4371156, 5463945, 7285260, 10927890, 21855780]

約数ペア:

[(1, 21855780), (2, 10927890), (3, 7285260), (4, 5463945), (5, 4371156), (6, 3642630), (9, 2428420), (10, 2185578), (12, 1821315), (15, 1457052), (18, 1214210), (20, 1092789), (30, 728526), (36, 607105), (45, 485684), (60, 364263), (90, 242842), (180, 121421)]