21539646

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1637}}^1$

素因数の和:1705

約数の個数: 48

約数和(自身を含む): 50594544

約数和(自身を除く): 29054898

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 43, 51, 86, 102, 129, 153, 258, 306, 387, 731, 774, 1462, 1637, 2193, 3274, 4386, 4911, 6579, 9822, 13158, 14733, 27829, 29466, 55658, 70391, 83487, 140782, 166974, 211173, 250461, 422346, 500922, 633519, 1196647, 1267038, 2393294, 3589941, 7179882, 10769823, 21539646]

約数ペア:

[(1, 21539646), (2, 10769823), (3, 7179882), (6, 3589941), (9, 2393294), (17, 1267038), (18, 1196647), (34, 633519), (43, 500922), (51, 422346), (86, 250461), (102, 211173), (129, 166974), (153, 140782), (258, 83487), (306, 70391), (387, 55658), (731, 29466), (774, 27829), (1462, 14733), (1637, 13158), (2193, 9822), (3274, 6579), (4386, 4911)]