21587156

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 41489280

約数和(自身を除く): 19902124

約数列:

[1, 2, 4, 23, 41, 46, 59, 82, 92, 97, 118, 164, 194, 236, 388, 943, 1357, 1886, 2231, 2419, 2714, 3772, 3977, 4462, 4838, 5428, 5723, 7954, 8924, 9676, 11446, 15908, 22892, 55637, 91471, 111274, 131629, 182942, 222548, 234643, 263258, 365884, 469286, 526516, 938572, 5396789, 10793578, 21587156]

約数ペア:

[(1, 21587156), (2, 10793578), (4, 5396789), (23, 938572), (41, 526516), (46, 469286), (59, 365884), (82, 263258), (92, 234643), (97, 222548), (118, 182942), (164, 131629), (194, 111274), (236, 91471), (388, 55637), (943, 22892), (1357, 15908), (1886, 11446), (2231, 9676), (2419, 8924), (2714, 7954), (3772, 5723), (3977, 5428), (4462, 4838)]