18399425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2909}}^1$

素因数の和:2953

約数の個数: 24

約数和(自身を含む): 25980480

約数和(自身を除く): 7581055

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 2909, 6325, 14545, 31999, 66907, 72725, 159995, 334535, 735977, 799975, 1672675, 3679885, 18399425]

約数ペア:

[(1, 18399425), (5, 3679885), (11, 1672675), (23, 799975), (25, 735977), (55, 334535), (115, 159995), (253, 72725), (275, 66907), (575, 31999), (1265, 14545), (2909, 6325)]