21387068.000000000

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{283}}^1\times {\mathrm{1117}}^1$

素因数の和:1628

約数の個数: 32

約数和(自身を含む): 853472256

約数和(自身を除く): 430515738

約数列:

[1, 2, 3, 6, 223, 283, 446, 566, 669, 849, 1117, 1338, 1698, 2234, 3351, 6702, 63109, 126218, 189327, 249091, 316111, 378654, 498182, 632222, 747273, 948333, 1494546, 1896666, 70492753, 140985506, 211478259, 422956518]

約数ペア:

[(1, 422956518), (2, 211478259), (3, 140985506), (6, 70492753), (223, 1896666), (283, 1494546), (446, 948333), (566, 747273), (669, 632222), (849, 498182), (1117, 378654), (1338, 316111), (1698, 249091), (2234, 189327), (3351, 126218), (6702, 63109)]