18799768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1109}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 38228400

約数和(自身を除く): 19428632

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 163, 326, 652, 1109, 1304, 2119, 2218, 4238, 4436, 8476, 8872, 14417, 16952, 28834, 57668, 115336, 180767, 361534, 723068, 1446136, 2349971, 4699942, 9399884, 18799768]

約数ペア:

[(1, 18799768), (2, 9399884), (4, 4699942), (8, 2349971), (13, 1446136), (26, 723068), (52, 361534), (104, 180767), (163, 115336), (326, 57668), (652, 28834), (1109, 16952), (1304, 14417), (2119, 8872), (2218, 8476), (4238, 4436)]