20651955

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{311}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 35043840

約数和(自身を除く): 14391885

約数列:

[1, 3, 5, 15, 19, 57, 95, 233, 285, 311, 699, 933, 1165, 1555, 3495, 4427, 4665, 5909, 13281, 17727, 22135, 29545, 66405, 72463, 88635, 217389, 362315, 1086945, 1376797, 4130391, 6883985, 20651955]

約数ペア:

[(1, 20651955), (3, 6883985), (5, 4130391), (15, 1376797), (19, 1086945), (57, 362315), (95, 217389), (233, 88635), (285, 72463), (311, 66405), (699, 29545), (933, 22135), (1165, 17727), (1555, 13281), (3495, 5909), (4427, 4665)]