21377637

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 31674240

約数和(自身を除く): 10296603

約数列:

[1, 3, 9, 79, 107, 237, 281, 321, 711, 843, 963, 2529, 8453, 22199, 25359, 30067, 66597, 76077, 90201, 199791, 270603, 2375293, 7125879, 21377637]

約数ペア:

[(1, 21377637), (3, 7125879), (9, 2375293), (79, 270603), (107, 199791), (237, 90201), (281, 76077), (321, 66597), (711, 30067), (843, 25359), (963, 22199), (2529, 8453)]