18987969

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6323}}^1$

素因数の和:6357

約数の個数: 32

約数和(自身を含む): 33997824

約数和(自身を除く): 15009855

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 6323, 18969, 44261, 69553, 82199, 132783, 208659, 246597, 486871, 575393, 904189, 1460613, 1726179, 2712567, 6329323, 18987969]

約数ペア:

[(1, 18987969), (3, 6329323), (7, 2712567), (11, 1726179), (13, 1460613), (21, 904189), (33, 575393), (39, 486871), (77, 246597), (91, 208659), (143, 132783), (231, 82199), (273, 69553), (429, 44261), (1001, 18969), (3003, 6323)]