20603639

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 24127488

約数和(自身を除く): 3523849

約数列:

[1, 7, 67, 197, 223, 469, 1379, 1561, 13199, 14941, 43931, 92393, 104587, 307517, 2943377, 20603639]

約数ペア:

[(1, 20603639), (7, 2943377), (67, 307517), (197, 104587), (223, 92393), (469, 43931), (1379, 14941), (1561, 13199)]