17945319

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 30336768

約数和(自身を除く): 12391449

約数列:

[1, 3, 7, 17, 21, 43, 49, 51, 119, 129, 147, 167, 301, 357, 501, 731, 833, 903, 1169, 2107, 2193, 2499, 2839, 3507, 5117, 6321, 7181, 8183, 8517, 15351, 19873, 21543, 24549, 35819, 50267, 59619, 107457, 122077, 139111, 150801, 351869, 366231, 417333, 854539, 1055607, 2563617, 5981773, 17945319]

約数ペア:

[(1, 17945319), (3, 5981773), (7, 2563617), (17, 1055607), (21, 854539), (43, 417333), (49, 366231), (51, 351869), (119, 150801), (129, 139111), (147, 122077), (167, 107457), (301, 59619), (357, 50267), (501, 35819), (731, 24549), (833, 21543), (903, 19873), (1169, 15351), (2107, 8517), (2193, 8183), (2499, 7181), (2839, 6321), (3507, 5117)]