21000895479

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{39549709}}^1$

素因数の和:39549774

約数の個数: 12

約数和(自身を含む): 30848773800

約数和(自身を除く): 9847878321

約数列:

[1, 3, 9, 59, 177, 531, 39549709, 118649127, 355947381, 2333432831, 7000298493, 21000895479]

約数ペア:

[(1, 21000895479), (3, 7000298493), (9, 2333432831), (59, 355947381), (177, 118649127), (531, 39549709)]