21064593

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11191407

約数列:

[1, 3, 11, 31, 33, 59, 93, 177, 341, 349, 649, 1023, 1047, 1829, 1947, 3839, 5487, 10819, 11517, 20119, 20591, 32457, 60357, 61773, 119009, 226501, 357027, 638321, 679503, 1914963, 7021531, 21064593]

約数ペア:

[(1, 21064593), (3, 7021531), (11, 1914963), (31, 679503), (33, 638321), (59, 357027), (93, 226501), (177, 119009), (341, 61773), (349, 60357), (649, 32457), (1023, 20591), (1047, 20119), (1829, 11517), (1947, 10819), (3839, 5487)]