28925715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21191}}^1$

素因数の和:21219

約数の個数: 32

約数和(自身を含む): 56964096

約数和(自身を除く): 28038381

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 21191, 63573, 105955, 148337, 275483, 317865, 445011, 741685, 826449, 1377415, 1928381, 2225055, 4132245, 5785143, 9641905, 28925715]

約数ペア:

[(1, 28925715), (3, 9641905), (5, 5785143), (7, 4132245), (13, 2225055), (15, 1928381), (21, 1377415), (35, 826449), (39, 741685), (65, 445011), (91, 317865), (105, 275483), (195, 148337), (273, 105955), (455, 63573), (1365, 21191)]