21126180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4457}}^1$

素因数の和:4548

約数の個数: 48

約数和(自身を含む): 59915520

約数和(自身を除く): 38789340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4457, 4740, 8914, 13371, 17828, 22285, 26742, 44570, 53484, 66855, 89140, 133710, 267420, 352103, 704206, 1056309, 1408412, 1760515, 2112618, 3521030, 4225236, 5281545, 7042060, 10563090, 21126180]

約数ペア:

[(1, 21126180), (2, 10563090), (3, 7042060), (4, 5281545), (5, 4225236), (6, 3521030), (10, 2112618), (12, 1760515), (15, 1408412), (20, 1056309), (30, 704206), (60, 352103), (79, 267420), (158, 133710), (237, 89140), (316, 66855), (395, 53484), (474, 44570), (790, 26742), (948, 22285), (1185, 17828), (1580, 13371), (2370, 8914), (4457, 4740)]