20403075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3533}}^1$

素因数の和:3564

約数の個数: 48

約数和(自身を含む): 42068736

約数和(自身を除く): 21665661

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3533, 5775, 10599, 17665, 24731, 38863, 52995, 74193, 88325, 116589, 123655, 194315, 264975, 272041, 370965, 582945, 618275, 816123, 971575, 1360205, 1854825, 2914725, 4080615, 6801025, 20403075]

約数ペア:

[(1, 20403075), (3, 6801025), (5, 4080615), (7, 2914725), (11, 1854825), (15, 1360205), (21, 971575), (25, 816123), (33, 618275), (35, 582945), (55, 370965), (75, 272041), (77, 264975), (105, 194315), (165, 123655), (175, 116589), (231, 88325), (275, 74193), (385, 52995), (525, 38863), (825, 24731), (1155, 17665), (1925, 10599), (3533, 5775)]