21113565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3121}}^1$

素因数の和:3181

約数の個数: 32

約数和(自身を含む): 37763712

約数和(自身を除く): 16650147

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 123, 165, 205, 451, 615, 1353, 2255, 3121, 6765, 9363, 15605, 34331, 46815, 102993, 127961, 171655, 383883, 514965, 639805, 1407571, 1919415, 4222713, 7037855, 21113565]

約数ペア:

[(1, 21113565), (3, 7037855), (5, 4222713), (11, 1919415), (15, 1407571), (33, 639805), (41, 514965), (55, 383883), (123, 171655), (165, 127961), (205, 102993), (451, 46815), (615, 34331), (1353, 15605), (2255, 9363), (3121, 6765)]