21220065

素因数分解:

$3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1753}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 36939240

約数和(自身を除く): 15719175

約数列:

[1, 3, 5, 9, 15, 45, 269, 807, 1345, 1753, 2421, 4035, 5259, 8765, 12105, 15777, 26295, 78885, 471557, 1414671, 2357785, 4244013, 7073355, 21220065]

約数ペア:

[(1, 21220065), (3, 7073355), (5, 4244013), (9, 2357785), (15, 1414671), (45, 471557), (269, 78885), (807, 26295), (1345, 15777), (1753, 12105), (2421, 8765), (4035, 5259)]