21192292

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 43287552

約数和(自身を除く): 22095260

約数列:

[1, 2, 4, 11, 22, 23, 43, 44, 46, 86, 92, 172, 253, 473, 487, 506, 946, 974, 989, 1012, 1892, 1948, 1978, 3956, 5357, 10714, 10879, 11201, 20941, 21428, 21758, 22402, 41882, 43516, 44804, 83764, 123211, 230351, 246422, 460702, 481643, 492844, 921404, 963286, 1926572, 5298073, 10596146, 21192292]

約数ペア:

[(1, 21192292), (2, 10596146), (4, 5298073), (11, 1926572), (22, 963286), (23, 921404), (43, 492844), (44, 481643), (46, 460702), (86, 246422), (92, 230351), (172, 123211), (253, 83764), (473, 44804), (487, 43516), (506, 41882), (946, 22402), (974, 21758), (989, 21428), (1012, 20941), (1892, 11201), (1948, 10879), (1978, 10714), (3956, 5357)]