21029811

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 32188416

約数和(自身を除く): 11158605

約数列:

[1, 3, 11, 31, 33, 61, 93, 183, 337, 341, 671, 1011, 1023, 1891, 2013, 3707, 5673, 10447, 11121, 20557, 20801, 31341, 61671, 62403, 114917, 226127, 344751, 637267, 678381, 1911801, 7009937, 21029811]

約数ペア:

[(1, 21029811), (3, 7009937), (11, 1911801), (31, 678381), (33, 637267), (61, 344751), (93, 226127), (183, 114917), (337, 62403), (341, 61671), (671, 31341), (1011, 20801), (1023, 20557), (1891, 11121), (2013, 10447), (3707, 5673)]