638644539

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{22159}}^1$

素因数の和:22914

約数の個数: 16

約数和(自身を含む): 918310400

約数和(自身を除く): 279665861

約数列:

[1, 3, 13, 39, 739, 2217, 9607, 22159, 28821, 66477, 288067, 864201, 16375501, 49126503, 212881513, 638644539]

約数ペア:

[(1, 638644539), (3, 212881513), (13, 49126503), (39, 16375501), (739, 864201), (2217, 288067), (9607, 66477), (22159, 28821)]