18924776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{643}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 38408160

約数和(自身を除く): 19483384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 283, 566, 643, 1132, 1286, 2264, 2572, 3679, 5144, 7358, 8359, 14716, 16718, 29432, 33436, 66872, 181969, 363938, 727876, 1455752, 2365597, 4731194, 9462388, 18924776]

約数ペア:

[(1, 18924776), (2, 9462388), (4, 4731194), (8, 2365597), (13, 1455752), (26, 727876), (52, 363938), (104, 181969), (283, 66872), (566, 33436), (643, 29432), (1132, 16718), (1286, 14716), (2264, 8359), (2572, 7358), (3679, 5144)]