20605809

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16631}}^1$

素因数の和:16700

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11327631

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16631, 49893, 116417, 349251, 981229, 2943687, 6868603, 20605809]

約数ペア:

[(1, 20605809), (3, 6868603), (7, 2943687), (21, 981229), (59, 349251), (177, 116417), (413, 49893), (1239, 16631)]