21603549

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 33699456

約数和(自身を除く): 12095907

約数列:

[1, 3, 11, 17, 33, 51, 97, 187, 291, 397, 561, 1067, 1191, 1649, 3201, 4367, 4947, 6749, 13101, 18139, 20247, 38509, 54417, 74239, 115527, 222717, 423599, 654653, 1270797, 1963959, 7201183, 21603549]

約数ペア:

[(1, 21603549), (3, 7201183), (11, 1963959), (17, 1270797), (33, 654653), (51, 423599), (97, 222717), (187, 115527), (291, 74239), (397, 54417), (561, 38509), (1067, 20247), (1191, 18139), (1649, 13101), (3201, 6749), (4367, 4947)]