18260865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 37440000

約数和(自身を除く): 19179135

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 1999, 3045, 5997, 9135, 9995, 13993, 17991, 29985, 41979, 57971, 69965, 89955, 125937, 173913, 209895, 289855, 405797, 521739, 629685, 869565, 1217391, 2028985, 2608695, 3652173, 6086955, 18260865]

約数ペア:

[(1, 18260865), (3, 6086955), (5, 3652173), (7, 2608695), (9, 2028985), (15, 1217391), (21, 869565), (29, 629685), (35, 521739), (45, 405797), (63, 289855), (87, 209895), (105, 173913), (145, 125937), (203, 89955), (261, 69965), (315, 57971), (435, 41979), (609, 29985), (1015, 17991), (1305, 13993), (1827, 9995), (1999, 9135), (3045, 5997)]