20731074405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1637}}^1\times {\mathrm{49663}}^1$

素因数の和:51325

約数の個数: 32

約数和(自身を含む): 35143041024

約数和(自身を除く): 14411966619

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 1637, 4911, 8185, 24555, 27829, 49663, 83487, 139145, 148989, 248315, 417435, 744945, 844271, 2532813, 4221355, 12664065, 81298331, 243894993, 406491655, 1219474965, 1382071627, 4146214881, 6910358135, 20731074405]

約数ペア:

[(1, 20731074405), (3, 6910358135), (5, 4146214881), (15, 1382071627), (17, 1219474965), (51, 406491655), (85, 243894993), (255, 81298331), (1637, 12664065), (4911, 4221355), (8185, 2532813), (24555, 844271), (27829, 744945), (49663, 417435), (83487, 248315), (139145, 148989)]