28709469

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 42432000

約数和(自身を除く): 13722531

約数列:

[1, 3, 9, 79, 149, 237, 271, 447, 711, 813, 1341, 2439, 11771, 21409, 35313, 40379, 64227, 105939, 121137, 192681, 363411, 3189941, 9569823, 28709469]

約数ペア:

[(1, 28709469), (3, 9569823), (9, 3189941), (79, 363411), (149, 192681), (237, 121137), (271, 105939), (447, 64227), (711, 40379), (813, 35313), (1341, 21409), (2439, 11771)]