21638216

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{5113}}^1$

素因数の和:5165

約数の個数: 24

約数和(自身を含む): 42420630

約数和(自身を除く): 20782414

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 529, 1058, 2116, 4232, 5113, 10226, 20452, 40904, 117599, 235198, 470396, 940792, 2704777, 5409554, 10819108, 21638216]

約数ペア:

[(1, 21638216), (2, 10819108), (4, 5409554), (8, 2704777), (23, 940792), (46, 470396), (92, 235198), (184, 117599), (529, 40904), (1058, 20452), (2116, 10226), (4232, 5113)]