21390060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356501}}^1$

素因数の和:356513

約数の個数: 24

約数和(自身を含む): 59892336

約数和(自身を除く): 38502276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356501, 713002, 1069503, 1426004, 1782505, 2139006, 3565010, 4278012, 5347515, 7130020, 10695030, 21390060]

約数ペア:

[(1, 21390060), (2, 10695030), (3, 7130020), (4, 5347515), (5, 4278012), (6, 3565010), (10, 2139006), (12, 1782505), (15, 1426004), (20, 1069503), (30, 713002), (60, 356501)]