20951319

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 10014441

約数列:

[1, 3, 19, 31, 57, 71, 93, 167, 213, 501, 589, 1349, 1767, 2201, 3173, 4047, 5177, 6603, 9519, 11857, 15531, 35571, 41819, 98363, 125457, 225283, 295089, 367567, 675849, 1102701, 6983773, 20951319]

約数ペア:

[(1, 20951319), (3, 6983773), (19, 1102701), (31, 675849), (57, 367567), (71, 295089), (93, 225283), (167, 125457), (213, 98363), (501, 41819), (589, 35571), (1349, 15531), (1767, 11857), (2201, 9519), (3173, 6603), (4047, 5177)]