20354491

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:159

約数の個数: 32

約数和(自身を含む): 24494400

約数和(自身を除く): 4139909

約数列:

[1, 17, 19, 29, 41, 53, 323, 493, 551, 697, 779, 901, 1007, 1189, 1537, 2173, 9367, 13243, 17119, 20213, 22591, 26129, 29203, 36941, 41287, 63017, 384047, 496451, 701879, 1071289, 1197323, 20354491]

約数ペア:

[(1, 20354491), (17, 1197323), (19, 1071289), (29, 701879), (41, 496451), (53, 384047), (323, 63017), (493, 41287), (551, 36941), (697, 29203), (779, 26129), (901, 22591), (1007, 20213), (1189, 17119), (1537, 13243), (2173, 9367)]