21184471

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 6809129

約数列:

[1, 7, 11, 29, 53, 77, 179, 203, 319, 371, 583, 1253, 1537, 1969, 2233, 4081, 5191, 9487, 10759, 13783, 16907, 36337, 57101, 66409, 104357, 118349, 275123, 399707, 730499, 1925861, 3026353, 21184471]

約数ペア:

[(1, 21184471), (7, 3026353), (11, 1925861), (29, 730499), (53, 399707), (77, 275123), (179, 118349), (203, 104357), (319, 66409), (371, 57101), (583, 36337), (1253, 16907), (1537, 13783), (1969, 10759), (2233, 9487), (4081, 5191)]