20407527

素因数分解:

$3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1427}}^1$

素因数の和:1667

約数の個数: 24

約数和(自身を含む): 33860736

約数和(自身を除く): 13453209

約数列:

[1, 3, 7, 9, 21, 63, 227, 681, 1427, 1589, 2043, 4281, 4767, 9989, 12843, 14301, 29967, 89901, 323929, 971787, 2267503, 2915361, 6802509, 20407527]

約数ペア:

[(1, 20407527), (3, 6802509), (7, 2915361), (9, 2267503), (21, 971787), (63, 323929), (227, 89901), (681, 29967), (1427, 14301), (1589, 12843), (2043, 9989), (4281, 4767)]