20489109

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9370731

約数列:

[1, 3, 29, 31, 71, 87, 93, 107, 213, 321, 899, 2059, 2201, 2697, 3103, 3317, 6177, 6603, 7597, 9309, 9951, 22791, 63829, 96193, 191487, 220313, 235507, 288579, 660939, 706521, 6829703, 20489109]

約数ペア:

[(1, 20489109), (3, 6829703), (29, 706521), (31, 660939), (71, 288579), (87, 235507), (93, 220313), (107, 191487), (213, 96193), (321, 63829), (899, 22791), (2059, 9951), (2201, 9309), (2697, 7597), (3103, 6603), (3317, 6177)]