21815079

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{241}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 34476288

約数和(自身を除く): 12661209

約数列:

[1, 3, 11, 13, 33, 39, 143, 211, 241, 429, 633, 723, 2321, 2651, 2743, 3133, 6963, 7953, 8229, 9399, 30173, 34463, 50851, 90519, 103389, 152553, 559361, 661063, 1678083, 1983189, 7271693, 21815079]

約数ペア:

[(1, 21815079), (3, 7271693), (11, 1983189), (13, 1678083), (33, 661063), (39, 559361), (143, 152553), (211, 103389), (241, 90519), (429, 50851), (633, 34463), (723, 30173), (2321, 9399), (2651, 8229), (2743, 7953), (3133, 6963)]