20801865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10427}}^1$

素因数の和:10461

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 19241655

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10427, 31281, 52135, 72989, 156405, 198113, 218967, 364945, 594339, 990565, 1094835, 1386791, 2971695, 4160373, 6933955, 20801865]

約数ペア:

[(1, 20801865), (3, 6933955), (5, 4160373), (7, 2971695), (15, 1386791), (19, 1094835), (21, 990565), (35, 594339), (57, 364945), (95, 218967), (105, 198113), (133, 156405), (285, 72989), (399, 52135), (665, 31281), (1995, 10427)]