18531568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1573

約数の個数: 40

約数和(自身を含む): 39747456

約数和(自身を除く): 21215888

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1483, 1562, 2966, 3124, 5932, 6248, 11864, 12496, 16313, 23728, 32626, 65252, 105293, 130504, 210586, 261008, 421172, 842344, 1158223, 1684688, 2316446, 4632892, 9265784, 18531568]

約数ペア:

[(1, 18531568), (2, 9265784), (4, 4632892), (8, 2316446), (11, 1684688), (16, 1158223), (22, 842344), (44, 421172), (71, 261008), (88, 210586), (142, 130504), (176, 105293), (284, 65252), (568, 32626), (781, 23728), (1136, 16313), (1483, 12496), (1562, 11864), (2966, 6248), (3124, 5932)]