216851009

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 242904480

約数和(自身を除く): 26053471

約数列:

[1, 19, 29, 41, 331, 551, 779, 841, 1189, 6289, 9599, 13571, 15979, 22591, 34481, 182381, 257849, 278371, 393559, 655139, 5289049, 7477621, 11413211, 216851009]

約数ペア:

[(1, 216851009), (19, 11413211), (29, 7477621), (41, 5289049), (331, 655139), (551, 393559), (779, 278371), (841, 257849), (1189, 182381), (6289, 34481), (9599, 22591), (13571, 15979)]