21109218

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{270631}}^1$

素因数の和:270649

約数の個数: 16

約数和(自身を含む): 45466176

約数和(自身を除く): 24356958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 270631, 541262, 811893, 1623786, 3518203, 7036406, 10554609, 21109218]

約数ペア:

[(1, 21109218), (2, 10554609), (3, 7036406), (6, 3518203), (13, 1623786), (26, 811893), (39, 541262), (78, 270631)]