20949981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{3001}}^1$

素因数の和:3196

約数の個数: 16

約数和(自身を含む): 30260160

約数和(自身を除く): 9310179

約数列:

[1, 3, 13, 39, 179, 537, 2327, 3001, 6981, 9003, 39013, 117039, 537179, 1611537, 6983327, 20949981]

約数ペア:

[(1, 20949981), (3, 6983327), (13, 1611537), (39, 537179), (179, 117039), (537, 39013), (2327, 9003), (3001, 6981)]