21058020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116989}}^1$

素因数の和:117004

約数の個数: 36

約数和(自身を含む): 63876540

約数和(自身を除く): 42818520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116989, 233978, 350967, 467956, 584945, 701934, 1052901, 1169890, 1403868, 1754835, 2105802, 2339780, 3509670, 4211604, 5264505, 7019340, 10529010, 21058020]

約数ペア:

[(1, 21058020), (2, 10529010), (3, 7019340), (4, 5264505), (5, 4211604), (6, 3509670), (9, 2339780), (10, 2105802), (12, 1754835), (15, 1403868), (18, 1169890), (20, 1052901), (30, 701934), (36, 584945), (45, 467956), (60, 350967), (90, 233978), (180, 116989)]