21519465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3181}}^1$

素因数の和:3241

約数の個数: 32

約数和(自身を含む): 38489472

約数和(自身を除く): 16970007

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 123, 165, 205, 451, 615, 1353, 2255, 3181, 6765, 9543, 15905, 34991, 47715, 104973, 130421, 174955, 391263, 524865, 652105, 1434631, 1956315, 4303893, 7173155, 21519465]

約数ペア:

[(1, 21519465), (3, 7173155), (5, 4303893), (11, 1956315), (15, 1434631), (33, 652105), (41, 524865), (55, 391263), (123, 174955), (165, 130421), (205, 104973), (451, 47715), (615, 34991), (1353, 15905), (2255, 9543), (3181, 6765)]