21791847

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3253}}^1$

素因数の和:3303

約数の個数: 32

約数和(自身を含む): 37486080

約数和(自身を除く): 15694233

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 3253, 6699, 9759, 22771, 35783, 68313, 94337, 107349, 250481, 283011, 660359, 751443, 1037707, 1981077, 3113121, 7263949, 21791847]

約数ペア:

[(1, 21791847), (3, 7263949), (7, 3113121), (11, 1981077), (21, 1037707), (29, 751443), (33, 660359), (77, 283011), (87, 250481), (203, 107349), (231, 94337), (319, 68313), (609, 35783), (957, 22771), (2233, 9759), (3253, 6699)]