21611583

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3943}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 37862400

約数和(自身を除く): 16250817

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3943, 5481, 11829, 27601, 35487, 82803, 106461, 114347, 248409, 343041, 745227, 800429, 1029123, 2401287, 3087369, 7203861, 21611583]

約数ペア:

[(1, 21611583), (3, 7203861), (7, 3087369), (9, 2401287), (21, 1029123), (27, 800429), (29, 745227), (63, 343041), (87, 248409), (189, 114347), (203, 106461), (261, 82803), (609, 35487), (783, 27601), (1827, 11829), (3943, 5481)]