21000297015

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12612791}}^1$

素因数の和:12612839

約数の個数: 24

約数和(自身を含む): 37384315488

約数和(自身を除く): 16384018473

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12612791, 37838373, 63063955, 113515119, 189191865, 466673267, 567575595, 1400019801, 2333366335, 4200059403, 7000099005, 21000297015]

約数ペア:

[(1, 21000297015), (3, 7000099005), (5, 4200059403), (9, 2333366335), (15, 1400019801), (37, 567575595), (45, 466673267), (111, 189191865), (185, 113515119), (333, 63063955), (555, 37838373), (1665, 12612791)]