18197554

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 12491726

約数列:

[1, 2, 19, 23, 38, 46, 47, 94, 437, 443, 874, 886, 893, 1081, 1786, 2162, 8417, 10189, 16834, 20378, 20539, 20821, 41078, 41642, 193591, 387182, 395599, 478883, 791198, 957766, 9098777, 18197554]

約数ペア:

[(1, 18197554), (2, 9098777), (19, 957766), (23, 791198), (38, 478883), (46, 395599), (47, 387182), (94, 193591), (437, 41642), (443, 41078), (874, 20821), (886, 20539), (893, 20378), (1081, 16834), (1786, 10189), (2162, 8417)]