20502765

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26801}}^1$

素因数の和:26829

約数の個数: 24

約数和(自身を含む): 37630008

約数和(自身を除く): 17127243

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26801, 80403, 134005, 241209, 402015, 455617, 1206045, 1366851, 2278085, 4100553, 6834255, 20502765]

約数ペア:

[(1, 20502765), (3, 6834255), (5, 4100553), (9, 2278085), (15, 1366851), (17, 1206045), (45, 455617), (51, 402015), (85, 241209), (153, 134005), (255, 80403), (765, 26801)]