211218456

素因数分解:

$2^3\times 3^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1\times {\mathrm{307}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 536659200

約数和(自身を除く): 325440744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 109, 218, 263, 307, 327, 436, 526, 614, 654, 789, 872, 921, 1052, 1228, 1308, 1578, 1842, 2104, 2456, 2616, 3156, 3684, 6312, 7368, 28667, 33463, 57334, 66926, 80741, 86001, 100389, 114668, 133852, 161482, 172002, 200778, 229336, 242223, 267704, 322964, 344004, 401556, 484446, 645928, 688008, 803112, 968892, 1937784, 8800769, 17601538, 26402307, 35203076, 52804614, 70406152, 105609228, 211218456]

約数ペア:

[(1, 211218456), (2, 105609228), (3, 70406152), (4, 52804614), (6, 35203076), (8, 26402307), (12, 17601538), (24, 8800769), (109, 1937784), (218, 968892), (263, 803112), (307, 688008), (327, 645928), (436, 484446), (526, 401556), (614, 344004), (654, 322964), (789, 267704), (872, 242223), (921, 229336), (1052, 200778), (1228, 172002), (1308, 161482), (1578, 133852), (1842, 114668), (2104, 100389), (2456, 86001), (2616, 80741), (3156, 66926), (3684, 57334), (6312, 33463), (7368, 28667)]