21155295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1783}}^1$

素因数の和:1911

約数の個数: 32

約数和(自身を含む): 39048192

約数和(自身を除く): 17892897

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 113, 339, 565, 791, 1695, 1783, 2373, 3955, 5349, 8915, 11865, 12481, 26745, 37443, 62405, 187215, 201479, 604437, 1007395, 1410353, 3022185, 4231059, 7051765, 21155295]

約数ペア:

[(1, 21155295), (3, 7051765), (5, 4231059), (7, 3022185), (15, 1410353), (21, 1007395), (35, 604437), (105, 201479), (113, 187215), (339, 62405), (565, 37443), (791, 26745), (1695, 12481), (1783, 11865), (2373, 8915), (3955, 5349)]