20339751

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 30117888

約数和(自身を除く): 9778137

約数列:

[1, 3, 23, 31, 37, 69, 93, 111, 257, 713, 771, 851, 1147, 2139, 2553, 3441, 5911, 7967, 9509, 17733, 23901, 26381, 28527, 79143, 183241, 218707, 294779, 549723, 656121, 884337, 6779917, 20339751]

約数ペア:

[(1, 20339751), (3, 6779917), (23, 884337), (31, 656121), (37, 549723), (69, 294779), (93, 218707), (111, 183241), (257, 79143), (713, 28527), (771, 26381), (851, 23901), (1147, 17733), (2139, 9509), (2553, 7967), (3441, 5911)]