20897097

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 32554368

約数和(自身を除く): 11657271

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 663, 731, 733, 1677, 2193, 2199, 9503, 9529, 12461, 28509, 28587, 31519, 37383, 94557, 161993, 409747, 485979, 535823, 1229241, 1607469, 6965699, 20897097]

約数ペア:

[(1, 20897097), (3, 6965699), (13, 1607469), (17, 1229241), (39, 535823), (43, 485979), (51, 409747), (129, 161993), (221, 94557), (559, 37383), (663, 31519), (731, 28587), (733, 28509), (1677, 12461), (2193, 9529), (2199, 9503)]