20900745

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12553}}^1$

素因数の和:12601

約数の個数: 24

約数和(自身を含む): 37210056

約数和(自身を除く): 16309311

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12553, 37659, 62765, 112977, 188295, 464461, 564885, 1393383, 2322305, 4180149, 6966915, 20900745]

約数ペア:

[(1, 20900745), (3, 6966915), (5, 4180149), (9, 2322305), (15, 1393383), (37, 564885), (45, 464461), (111, 188295), (185, 112977), (333, 62765), (555, 37659), (1665, 12553)]