21177057

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{227}}^1\times {\mathrm{257}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 31294368

約数和(自身を除く): 10117311

約数列:

[1, 3, 11, 33, 121, 227, 257, 363, 681, 771, 2497, 2827, 7491, 8481, 27467, 31097, 58339, 82401, 93291, 175017, 641729, 1925187, 7059019, 21177057]

約数ペア:

[(1, 21177057), (3, 7059019), (11, 1925187), (33, 641729), (121, 175017), (227, 93291), (257, 82401), (363, 58339), (681, 31097), (771, 27467), (2497, 8481), (2827, 7491)]