18808712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{811}}^1$

素因数の和:1053

約数の個数: 32

約数和(自身を含む): 38196480

約数和(自身を除く): 19387768

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 223, 446, 811, 892, 1622, 1784, 2899, 3244, 5798, 6488, 10543, 11596, 21086, 23192, 42172, 84344, 180853, 361706, 723412, 1446824, 2351089, 4702178, 9404356, 18808712]

約数ペア:

[(1, 18808712), (2, 9404356), (4, 4702178), (8, 2351089), (13, 1446824), (26, 723412), (52, 361706), (104, 180853), (223, 84344), (446, 42172), (811, 23192), (892, 21086), (1622, 11596), (1784, 10543), (2899, 6488), (3244, 5798)]