18851768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1663}}^1$

素因数の和:1791

約数の個数: 32

約数和(自身を含む): 38438400

約数和(自身を除く): 19586632

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 1663, 2834, 3326, 5668, 6652, 11336, 13304, 21619, 43238, 86476, 172952, 181267, 362534, 725068, 1450136, 2356471, 4712942, 9425884, 18851768]

約数ペア:

[(1, 18851768), (2, 9425884), (4, 4712942), (8, 2356471), (13, 1450136), (26, 725068), (52, 362534), (104, 181267), (109, 172952), (218, 86476), (436, 43238), (872, 21619), (1417, 13304), (1663, 11336), (2834, 6652), (3326, 5668)]