20739321

素因数分解:

$3^8\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:162

約数の個数: 36

約数和(自身を含む): 32475300

約数和(自身を除く): 11735979

約数列:

[1, 3, 9, 27, 29, 81, 87, 109, 243, 261, 327, 729, 783, 981, 2187, 2349, 2943, 3161, 6561, 7047, 8829, 9483, 21141, 26487, 28449, 63423, 79461, 85347, 190269, 238383, 256041, 715149, 768123, 2304369, 6913107, 20739321]

約数ペア:

[(1, 20739321), (3, 6913107), (9, 2304369), (27, 768123), (29, 715149), (81, 256041), (87, 238383), (109, 190269), (243, 85347), (261, 79461), (327, 63423), (729, 28449), (783, 26487), (981, 21141), (2187, 9483), (2349, 8829), (2943, 7047), (3161, 6561)]