20551005

素因数分解:

$3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1777}}^1$

素因数の和:2045

約数の個数: 24

約数和(自身を含む): 35780472

約数和(自身を除く): 15229467

約数列:

[1, 3, 5, 9, 15, 45, 257, 771, 1285, 1777, 2313, 3855, 5331, 8885, 11565, 15993, 26655, 79965, 456689, 1370067, 2283445, 4110201, 6850335, 20551005]

約数ペア:

[(1, 20551005), (3, 6850335), (5, 4110201), (9, 2283445), (15, 1370067), (45, 456689), (257, 79965), (771, 26655), (1285, 15993), (1777, 11565), (2313, 8885), (3855, 5331)]