31648851

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 54163200

約数和(自身を除く): 22514349

約数列:

[1, 3, 9, 13, 19, 23, 39, 57, 69, 117, 171, 207, 247, 299, 437, 619, 741, 897, 1311, 1857, 2223, 2691, 3933, 5571, 5681, 8047, 11761, 14237, 17043, 24141, 35283, 42711, 51129, 72423, 105849, 128133, 152893, 185081, 270503, 458679, 555243, 811509, 1376037, 1665729, 2434527, 3516539, 10549617, 31648851]

約数ペア:

[(1, 31648851), (3, 10549617), (9, 3516539), (13, 2434527), (19, 1665729), (23, 1376037), (39, 811509), (57, 555243), (69, 458679), (117, 270503), (171, 185081), (207, 152893), (247, 128133), (299, 105849), (437, 72423), (619, 51129), (741, 42711), (897, 35283), (1311, 24141), (1857, 17043), (2223, 14237), (2691, 11761), (3933, 8047), (5571, 5681)]