21806568120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181721401}}^1$

素因数の和:181721415

約数の個数: 32

約数和(自身を含む): 65419704720

約数和(自身を除く): 43613136600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181721401, 363442802, 545164203, 726885604, 908607005, 1090328406, 1453771208, 1817214010, 2180656812, 2725821015, 3634428020, 4361313624, 5451642030, 7268856040, 10903284060, 21806568120]

約数ペア:

[(1, 21806568120), (2, 10903284060), (3, 7268856040), (4, 5451642030), (5, 4361313624), (6, 3634428020), (8, 2725821015), (10, 2180656812), (12, 1817214010), (15, 1453771208), (20, 1090328406), (24, 908607005), (30, 726885604), (40, 545164203), (60, 363442802), (120, 181721401)]