19866678

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{523}}^1$

素因数の和:1028

約数の個数: 32

約数和(自身を含む): 42959616

約数和(自身を除く): 23092938

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 487, 523, 974, 1046, 1461, 1569, 2922, 3138, 6331, 6799, 12662, 13598, 18993, 20397, 37986, 40794, 254701, 509402, 764103, 1528206, 3311113, 6622226, 9933339, 19866678]

約数ペア:

[(1, 19866678), (2, 9933339), (3, 6622226), (6, 3311113), (13, 1528206), (26, 764103), (39, 509402), (78, 254701), (487, 40794), (523, 37986), (974, 20397), (1046, 18993), (1461, 13598), (1569, 12662), (2922, 6799), (3138, 6331)]