21996075

素因数分解:

$3^1\times 5^2\times {\mathrm{313}}^1\times {\mathrm{937}}^1$

素因数の和:1263

約数の個数: 24

約数和(自身を含む): 36521968

約数和(自身を除く): 14525893

約数列:

[1, 3, 5, 15, 25, 75, 313, 937, 939, 1565, 2811, 4685, 4695, 7825, 14055, 23425, 23475, 70275, 293281, 879843, 1466405, 4399215, 7332025, 21996075]

約数ペア:

[(1, 21996075), (3, 7332025), (5, 4399215), (15, 1466405), (25, 879843), (75, 293281), (313, 70275), (937, 23475), (939, 23425), (1565, 14055), (2811, 7825), (4685, 4695)]