21164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:65

約数の個数: 24

約数和(自身を含む): 44688

約数和(自身を除く): 23524

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1628, 1924, 5291, 10582, 21164]

約数ペア:

[(1, 21164), (2, 10582), (4, 5291), (11, 1924), (13, 1628), (22, 962), (26, 814), (37, 572), (44, 481), (52, 407), (74, 286), (143, 148)]