20752389

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5779}}^1$

素因数の和:5814

約数の個数: 32

約数和(自身を含む): 36992000

約数和(自身を除く): 16239611

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5779, 17337, 40453, 52011, 109801, 121359, 156033, 329403, 364077, 768607, 988209, 1092231, 2305821, 2964627, 6917463, 20752389]

約数ペア:

[(1, 20752389), (3, 6917463), (7, 2964627), (9, 2305821), (19, 1092231), (21, 988209), (27, 768607), (57, 364077), (63, 329403), (133, 156033), (171, 121359), (189, 109801), (399, 52011), (513, 40453), (1197, 17337), (3591, 5779)]