21895864

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1229}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 43837200

約数和(自身を除く): 21941336

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 1229, 2227, 2458, 4454, 4916, 8908, 9832, 17816, 20893, 41786, 83572, 160999, 167144, 321998, 643996, 1287992, 2736983, 5473966, 10947932, 21895864]

約数ペア:

[(1, 21895864), (2, 10947932), (4, 5473966), (8, 2736983), (17, 1287992), (34, 643996), (68, 321998), (131, 167144), (136, 160999), (262, 83572), (524, 41786), (1048, 20893), (1229, 17816), (2227, 9832), (2458, 8908), (4454, 4916)]