18987512

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2789}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 38167200

約数和(自身を除く): 19179688

約数列:

[1, 2, 4, 8, 23, 37, 46, 74, 92, 148, 184, 296, 851, 1702, 2789, 3404, 5578, 6808, 11156, 22312, 64147, 103193, 128294, 206386, 256588, 412772, 513176, 825544, 2373439, 4746878, 9493756, 18987512]

約数ペア:

[(1, 18987512), (2, 9493756), (4, 4746878), (8, 2373439), (23, 825544), (37, 513176), (46, 412772), (74, 256588), (92, 206386), (148, 128294), (184, 103193), (296, 64147), (851, 22312), (1702, 11156), (2789, 6808), (3404, 5578)]