128219847

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1523}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 206776320

約数和(自身を除く): 78556473

約数列:

[1, 3, 7, 19, 21, 57, 133, 211, 399, 633, 1477, 1523, 4009, 4431, 4569, 10661, 12027, 28063, 28937, 31983, 84189, 86811, 202559, 321353, 607677, 964059, 2249471, 6105707, 6748413, 18317121, 42739949, 128219847]

約数ペア:

[(1, 128219847), (3, 42739949), (7, 18317121), (19, 6748413), (21, 6105707), (57, 2249471), (133, 964059), (211, 607677), (399, 321353), (633, 202559), (1477, 86811), (1523, 84189), (4009, 31983), (4431, 28937), (4569, 28063), (10661, 12027)]