19397768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^2$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 40801740

約数和(自身を除く): 21403972

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 71, 74, 104, 142, 148, 284, 296, 481, 568, 923, 962, 1846, 1924, 2627, 3692, 3848, 5041, 5254, 7384, 10082, 10508, 20164, 21016, 34151, 40328, 65533, 68302, 131066, 136604, 186517, 262132, 273208, 373034, 524264, 746068, 1492136, 2424721, 4849442, 9698884, 19397768]

約数ペア:

[(1, 19397768), (2, 9698884), (4, 4849442), (8, 2424721), (13, 1492136), (26, 746068), (37, 524264), (52, 373034), (71, 273208), (74, 262132), (104, 186517), (142, 136604), (148, 131066), (284, 68302), (296, 65533), (481, 40328), (568, 34151), (923, 21016), (962, 20164), (1846, 10508), (1924, 10082), (2627, 7384), (3692, 5254), (3848, 5041)]