21742576

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1081

約数の個数: 40

約数和(自身を含む): 44550720

約数和(自身を除く): 22808144

約数列:

[1, 2, 4, 8, 16, 29, 47, 58, 94, 116, 188, 232, 376, 464, 752, 997, 1363, 1994, 2726, 3988, 5452, 7976, 10904, 15952, 21808, 28913, 46859, 57826, 93718, 115652, 187436, 231304, 374872, 462608, 749744, 1358911, 2717822, 5435644, 10871288, 21742576]

約数ペア:

[(1, 21742576), (2, 10871288), (4, 5435644), (8, 2717822), (16, 1358911), (29, 749744), (47, 462608), (58, 374872), (94, 231304), (116, 187436), (188, 115652), (232, 93718), (376, 57826), (464, 46859), (752, 28913), (997, 21808), (1363, 15952), (1994, 10904), (2726, 7976), (3988, 5452)]